Why is high finance so ambiguous and unknown to your every day people?

I just find it funny how outside of the tri-state area, no one really knows what Wall Street does. Considering that Wall Street has such a hold on people's every day life, I find it quite absurd that people are so oblivious to the fact that Wall Street controls their life from the shadows. The reason that you are able to drive your car is indirectly because of Wall Street. An investment bank was responsible for taking that car company public and raising capital in order for it to expand. The restaurants that you eat at. They are financed by investment banks or owned by Private Equity funds. The reason you are able to get a mortgage for your home---- a bank. I come from the south and I attend an Ivy target so I didn't know what Wall Street actually did until I got to college. The thing that i could associate Wall Street with was "stocks." When I go home and have conversations with my dad, I am appalled at how little he knows about money and how it works, despite him making 800k+ a year. If every day people simply taught themselves the basics of investing such as ETFs, stocks, bonds, Treasury rates, etc, they would literally never go broke. If they knew that they could hedge against a recession by investing in gold and other commodities as opposed to investing in a fucking restaurant like my parents did when I was 8 in which they lost over 20% of their initial investment. I see why Wall Street executives are so arrogant and think they are God. They literally know how the system works and make money off the ignorance of every day people who do not have a clue in regards to how money actually works.