VCs don't invest in a company. They invest in a functioning system. They invest in individuals whom they trust to build and maintain a functioning system. The nature of the system is largely irrelevant to them, as long as it produces what they desire: money, prestige among peers, hope, relief from boredom, etc.
Understanding a system is essential to working smart, but even more essential is having the balls to exploit and manipulate the system - to add value to them system and to remove waste and inefficiency from the system. Functioning systems are often highly inert; they resist change. That's why I say you need balls to change it.
Your father sits in a cab all day driving people from point to point. He functions in a transportation system. But what did he do to exploit it? Maybe he didn't have the balls to exploit a system he understood. However, you can bet he hopes that, one day, you will.