Darth_Yuthura

Oh I did indeed notice your biased council theme

And in Path of Destruction, Bane isn't hearing everything he wants to hear. So far he's been told he has to set an example for other apprentices, and he can't even so much as see that girl he likes outside of lessons. He was also let go, after he pulled away from the Dark Side after killing someone, and realised he killed his dad. The masters saw no use in him, and just abandoned his teaching. The sith don't care, and it is who is in their way... but only if killing them benefits them. If killing someone in their way isn't the only way, they try to turn them or use them.

As for the jedi, they seek to protect everyone, but have forgotten about their own. It is all for war, being that 'beacon of light.' Obviously, this is the council, and the actual Jedi who don't agree with this, are usually exiled, or turn to the dark side... if they don't, they can control their opinions.