When you throw someone under the bus you harm more than just that person. You make a mess and you slow down the bus.

One would hope that karma,  or the law would kick in at some point. Even if it never DOES you still are less efficient. The tech industry is really hard and competitive right now. It's going through a difficult time. Don't forget that it isn't worth your integrity. Even life itself is temporary. Do not sell your soul for the illusion of security.