You find 200k, skim 40k off the top, you turn it in to cops, the rightful owner recovers the money and tells cops “40k is missing!!!!” Who’s the first person the cops gonna ask about that 40k? THE MUHfukkA WHO HAD IT LAST, YOU!
Last thing you wanna do is have $40k sitting in your house when the cops start looking for it. Anyone who can lose 200k is connected and has contacts all through the city so you can bet your las $0.02 that the Cops will investigate.
But do you, everyone commits crime differently which is why some people get away with it and some people go to jail.