I don't think that I will ever get rich with bitcoins as my income from bitcoin is not too high as my more focus is on my full time job from where I get stable income it assures me security for future.
Whether it is bitcoin or fiat, as long as you focus and do your job well, you will have a bright future with it. I think the recipe to get rich is the same with bitcoin and fiat. If you trust more your full time job to get you a stable financial life, then focus on it. If you have more trust on bitcoin, then focus on earning bitcoin.
Yup it will depend on from where you can manage to earn higher income, if its in bitcoins then surely your focus would be more on bitcoins as everyone wants to earn higher amount of money to live better life ahead.