To be honest, this should should not be the drive! Honest truth! If you are driven by money, this will not go far (again honest truth). Motivation should come from innovating, and bringing ideas to the next level, and to expanding layer by layer, organically. This may sound cliche, but it is not: Once the effort, and work is put into the idea, the fruits come by itself. You will collect paychecks from left and right. People will make a line at your door. And again, this is honest truth. Have seen this first hand in Silicon Valley, and this is a perspective which comes from a guy whom has been in the game for ~10years, and whom has gone IPO with a company. Thus, my suggestion, is to be motivated by coming with the best, most reliable, functional, safe and robust idea!