Again though these are very specific scenarios. In no universe in his right mind everyday Michaelness is he just saying, "You know what? There's a chance to get more power? I just have to kill my friends? I'm in."
He'd have to be controlled, berserk, or protecting someone to have to be forced in a situation that would ever deem fighting us as an enemy.
If we want to talk about power hungry like it's some plague that makes you brain dead the second you show even a small sign of it then look no further to Michael's bestest bud, who I've seen no one say could betray us; Alice.
Alice in that Evolution state was also power hungry, claiming she could do whatever she wanted, are we then going to claim that she took could want to obliterate us off the face of the earth in order to further her contract with H.E.R.O to benefit the Mafia?
And we can't use the excuse of her being nicer than Michael, in fact it's probably the opposite. I mean her confession to us is her literally annihilating entire families in a compound building without any remorse. Inviting us into the Mafia business despite KNOWING how dangerous it is and potentially being able to kill us.
Michael on the other hand warns us about this line of work, multiple times in fact, which is much more than we can say for Alice. Michael also warns of the drug usage to Alice, who doesn't even care about taking an over recommended dosage. Shit, he even does everything in his power to NOT use the drugs THAT MAKE HIM STRONGER when faced against deaths door during the Lightning fight. A power hungry person is more like Klaus, who went as far as to betray all of his friends in order to gain more, not caring about the potential consequences of an overdose of said power, or any who stand in the way of it.