Similarly to how a lot of other characters in this game have ulterior motives or whatever other fuckery they have going on. I can see the point of Michael going full power hungry mode.
If granted unimaginable power even the strongest of wills could bend and Michael is no exception to this. Michael thus far has been nothing more than a true friend and has had our backs through thick and thin, training us and asking for advice yes.
But as we seen with Deryl (despite what caused him to fight against us) he still fought us despite him breaking the control (midway through the fight I believe) so friendship in this game doesn't mean much.
So, personally I can see Weird tossing in an arc where Michael is capped out due to the serum (if thats possible) and is looking for other means for power and if he has to go against his own allies I can see that happening as the one consistent thing about our lovable friend Michael is his hunger for more strength I can most definitely see him being conflicted about this as well.
If you recall the fight between Jake and MC even Jake is conflicted if the MC has been kind to him throughout the game up to that point. Mind you Jake's situation is different from Michael or Deryl but yeah I can totally see this being a thing for whatever reason.
Michael would be put in a similar situation, he, MC, and Alice are friends but he wants to get stronger and I wonder if friendship is more important than strength to him. The flashbacks and how he has behaved in regards to power imo leans him in the strength is more important camp but similarly one could argue the friendship camp as well.
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 too 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.
Michael has shown instances
IN A CRAZED STATE where he
WANTS more power, probably because during all of those instances he is fighting to
STAY ALIVE. Even in i instances he
SPECIFICALLY CHOOSES to gain
MORE POWER, he realized he couldn't win and wanted to retreat, hence the lightning monster fight, and his sanity not villainy.
I'd wager villain Michael would've been the Michael that stayed with his father. Luckily as we've seen in this update, that is very much not the case. Proving even more so he's not just some power hungry villain who could turn on his friends at any moment.