Scientists who fiddle around like this — just about all of them do, Simonsohn told me — aren’t usually committing fraud, nor are they intending to. They’re just falling prey to natural human biases that lead them to tip the scales and set up studies to produce false-positive results.

Since publishing novel results can garner a scientist rewards such as tenure and jobs, there’s ample incentive to p-hack.

I mean really, making claims they aren't committing fraud yet in the very next paragraph demonstrates their motivation... To commit fraud

Nevermind the numerous cases of published papers being bunk. And that something like 80% of published science isn't reproduceable...which is part of what publishing is to enable.