This is my opinion.Banks won't make you rich.saving in bank can never do that,because of interest rate that bank gives you is too tiny.You saving will be simply be eaten up by the sleepy monster called inflation. As a example I will take ,When I'm in grade school,each day I received 10Rs (my country currency) from my mother.It was enough to by me 2 meals,but in now 10Rs enough to buy 2 candies. 
Banks are just for keep your money safe! 
Banks are just for keep your money safe! I somehow agree with this because it is true that banks may cause bankruptcy because of their interest rates. Their rates is too high. You put your money in the bank so it'll not be spend on something but instead your money is getting smaller and smaller because of interest