The real motivators for going to Mars or wherever? Desire for glory, the need to get away from oppression, the desire to get away from the established order and the lure of wealth. Once technology brings the price of getting into orbit down to something reasonable, we are "halfway to anywhere".
Once that happens, look for revolutionaries, religious groups, holy warriors and adventurers to head on out. Think of Conquistadors, the Pilgrims, and the East India Company you get the idea.I don't think you will see too many bureaucrats out there.....