I suppose. However, the system will never make you rich. Your good choices will. People tend to put too much blame on "The system" and nobody wants to take personal responsibility.
Even making "good choices" your entire life things may still go the wrong way. Sometimes this is life, sometimes this is "The System". Sometimes "bad choices" make you rich as well(drug dealer, ponzi scheme).
Never? What about inheritance and social/family connections into lucrative jobs and investment opportunities? Those parts of 'the system' seem like they contribute the major part to some people's success and wealth. I suppose one could say something like "well, the person made the good choice to take the inheritance or opportunity on the silver platter before them". But that would seem to make the term "good choices" a bit vacuous, imho, as an account of what a person should do to become rich.
But if you spend a lot of time arguing that fate/bias determines a person's life, you are going to be less likely to invest the effort in making those good choices. Optimism and pessimism can infect a culture or an age. Lots more things are possible in ages of cultural optimism, it's self-reinforcing! We're definitely entering an age of pessimism.
Pessimism can breed anger and resentment which can eventually lead to changes/revolution. This can be a good or bad thing.
It's a balancing act really, but no one should chuck reality out the window so they can feel overly optimistic or overly pessimistic. That can be a struggle sometimes, depending on your life experiences, the current cultural climate and how much control you feel over your future.