This is the reason to go to a startup as a Marketer rather than P&G. At P&G, even with a top school MBA you'll wait 10+ years to be a Marketing director, let alone a VP. At a startup you'll get the title and responsibilities (if not the budget) much sooner.
Part of it is picking the right founders. How to do that? One is past history. What did they do to prior folks who came along with them? Do they have a history of replacing people with "professional managers" once things start growing?