1. No it doesn't matter, the bandits will treat you more like their bitch if you submitted to them when you fought Scar. The only big ish difference is when you visit Barrel at the tavern; You suck him off under the table if didn't admit being their bitch. But if you did then he fucks you in public..
2. I can't give an answer for it, sorry.. I helped him defeat Alpha.. but I can't remember telling him to go wild? Or I shouldn't have helped him if that was an option.. Anyway if he's still in your list with (red) hearts then I think everything is fine?