The encounter between Marcel and Ace was an eye opener. It was pretty insightful on Marcel's part, I must say. So, Ace has anger issues. My first guess would be it's something around his biological father. I'm sure that everything Ace learned about him was all positve - positive to the point where he found living up to his father's standard somewhat daunting. I'm also thinking that he has a lot of guilt around his younger brother, Billy (now deceased). He's asking himself what he could have done differently, how could he have been a better brother and role model for Billy. This would also tie into his "father" issues. Guilt sucks.
Guilt serves its purpose in causing us to change our ways, but anxiety-ridden guilt simply buries us. You can't change the past. You can only improve on what you're doing now. In my life, anyway, circumstances that I perceive as unfinished issues are in fact finished. I just didn't like the ending and no amount of replaying it in my head is going to change that.
Marcel really shined in this chapter.
If I were to take a stab at kjames' question, I would say Philippe is looking to get away from it all the way his half-brother did. Marcel's a potential meal ticket. I don't believe that's a bad thing. He'll need to ask, though....unless Marcel pulls a Brad/Steph thing and hauls his ass out of there. Yeah, Marcel's ready to give back too. Having $10 million will help.