> The incentive is to make sure you get placed fast.

No. If you place someone and the company has a 3 month probation period. If the person does not last past probation the recruiter does not get paid.

Unless America is different, this is how it works in Europe, Asia, AU/NZ.

The only time this changes is contract work because contract work done via a recruiter is the recruiter might charge you at $150/hr to the company and pay you $100/hr taking $50/hr for himself.