I suggest changing the title to the article's subheading, to eliminate the click/rage-bait of a certain billionaire's name - the article really is about research on the compensation incentives:

Economists and psychologists say that compensation may not provide as powerful an incentive as is often assumed.

which is too long, so:

Economists, psychologists say compensation incentive not provide as powerful as assumed.

Or:

_Economists, psychologists say compensation may not be as powerful an incentive as assumed_

or:

_Economists, psychologists say compensation not as powerful an incentive as often assumed_