Here's why:

The stupid Jedi don't get to have "attatchment" to anyone. We Sith, on the other hand, can do whatever we want!!

Nobody ever complains about anything I do because they know they're in trouble if they do.

In the rare event that someone DOES complain about something I'm doing, I can just force choke them and nobody else says anything.

I get to use all the cool force powers like force lightning.

I can kill whoever I want without getting fired.

All the chicks dig me because I can dance way better than a Jedi. 💃 💃

Anything else people can think of?