"The Customer Is Always Right." Except when they're the wrong client.

I started consulting in 1998.

Back then, PowerPoint still felt exciting, and "digital transformation" meant installing a new CRM. I have been blessed to work with some of the most amazing organisations and people and collaborate on real impact for clients, shareholders and stakeholders.

Over nearly three decades, I've watched the consulting industry earn both its success and its reputation.Some criticism is well deserved:

Dependency models dressed up as "partnerships"

Land-and-expand tactics that quietly inflate scope

Bait-and-switch sales, where senior partners sell and juniors deliver

"Benchmarking" that's really just last year's deck with a new logo

And now, consultants who outsource half the thinking to AI and call it insight

The market has learned to be cynical. Fair enough.

But here's the part we don't say out loud often enough:

There are consultants who genuinely want to help organisations become more effective, more human, more customer-centric, and more responsible stewards of the world they operate in.

If you're one of those people, this sentence matters:

The customer is not always right for you.

Some clients should be avoided. Even when the money is good.

Here are eight of them.

1. The Corrupt Client

You'll recognise them quickly.

There's the official agreement. And then there's the real agreement.

Kickbacks. "Project management fees." Inflated margins. Side deals. Favours for favours.

The work isn't about improving the organisation. It's about enriching the buyer.

This kind of client doesn't just erode your ethics. They eventually destroy your reputation.

Plenty of major consultancies learned this the hard way during the state-capture era.

No billing target is worth that.

2. The Courage-Deficient Leader

These clients hire consultants to say what they don't have the courage to say themselves.

They already know what they want to do: restructure, retrench, centralise, cut.

They just want an "independent" logo on the message.

You're not there to analyse. You're there to legitimise.

At that point, you're no longer a consultant. You're a corporate messenger in a borrowed suit.

3. The Procurement Empire

Procurement exists to create value. In some organisations, it has become a self-serving empire.

Endless onboarding. Impossible compliance hurdles. Discount-driven negotiations. RFPs that absorb weeks of unpaid intellectual effort for tenders that are never awarded.

The result?

Price beats impact

Admin beats expertise

Incumbents beat innovation

Specialists quietly exit

Even worse, pricing becomes theatre: inflate first, discount later, everyone pretends to win.

If the system makes it harder to negotiate contracts than deliver value, it's time to walk away.

4. The Perverse Organisation

Every organisation should be able to answer one simple question:

Who ultimately benefits from this work?

Customers? Shareholders? Communities? The planet?

When the answer is vague, or worse, "internal politics," you're helping optimise something that shouldn't exist in the first place.

If the end beneficiary is ego, influence, or internal power games, your impact will be ethically empty. No matter how polished the strategy deck looks.

5. The "Just Give Me the Solution" Client

Process is where capability is built. Not in endless workshops, but in real engagement, learning, and ownership.

Clients who only want a ready-made answer don't want transformation. They want a shortcut.

In the age of AI, this temptation is even stronger.

"Go away and come back with something brilliant."

But brilliance without involvement doesn't stick.

If the organisation doesn't want to walk the journey, the outcome will always be cosmetic.

6. The 180-Day Payer

Some organisations treat suppliers like balance-sheet tools.

90 days. 180 days. Sometimes more.

That works for commodities. It doesn't work for human effort.

Consulting is discretionary energy, not inventory. Cash-starved consultants don't deliver inspired work, no matter how professional they try to be.

Late payment cultures don't just strain finances. They quietly erode quality.

7. The Untouchable Genius

These leaders already have all the answers.

They hire consultants to agree with them, not to challenge them.

Contrarian thinking? Diversity of perspective? Healthy tension?

Not welcome.

If disagreement is punished and insight is filtered through ego, there's nothing left for a consultant to contribute.

8. The Arrogantly Successful

This one's controversial.

The hardest organisations to work with are often the ones riding high.

Success breeds confidence. Confidence can drift into complacency.

The best organisations stay humble while winning. The worst assume the curve will never turn.

It always does.

Saying No Is a Strategic Skill

Turning down work is hard. Especially after a quiet quarter.

But not every contract is worth the cost to your values, your people, or your long-term credibility.

The best consulting relationships are built on:

Mutual respect

Honest challenge

Shared accountability

Clear beneficiaries

Fair commercial treatment

When those conditions aren't present, impact becomes performative.

And performative impact helps no one.

Consulting doesn't have to be cynical. But if you are one of the good ones, you do have to be selective.

Because while the customer can always choose, you can too.