This makes me think about it mathematically. C(us) -> M{us}; C(ch) -> M{us,ch}; P(c) proportional M; S{C} -> P; Where, the company with greater market access,

This makes me think about it mathematically. C(us) -> M{us}; C(ch) -> M{us,ch}; P(c) proportional M; S{C} -> P; Where, the company with greater market access, has greater access to profit, and then greater chances of winning. We strip away all other pretenses, it might just boil down to, S(C(us)) < S(C(ch)), which is just a consequence of the rule set. No way forward, when S(C(us)) > S(C(ch)) is the goal, changing the rule set is the only available action.