Yes thats a good point about making an example outta somebody and its one way of looking at it, another way is that taking out a govt witness is gonna bring down a lot of heat which is gonna lead to more arrests which might lead to more people ratting.

"Let me tell you something. There's no nobility in poverty. I've been a poor man, and I've been a rich man. And I choose rich every fucking time."

-Jordan Belfort