Who are the good guys?

[Luka]

Ya know what?
I agree.

ALL FOR PRESIDENT MITHRAS!

*bows*

And now to assassinate you! ;D

But only for the greater good of the people, so I'm not evil for killing you. (Or so says Luka.)

Then I will conquer everyone and everything and kill anyone that defies me.
But only to protect my people from them, so I'm obviously a good person trying to protect my people. ;P

that's not someone good that's a Knight Templar (the trope)

Have you ever played Tau in WH40K?, like that