I remember reading once that like 99% of hitmen hired to do a job take the money and just go to the police to snitch on the person paying them. The average payment was also only like $3-5000. Which is small potatoes.

Very much not like the movies. But then again, if they took the money and ran that means they got paid in advance and who does that? Even in the movies, the hitman takes payment after the job is done!