I have lived at both ends of the spectrum, I was born into obscene wealth but I was also born queer so will never see a cent. I now live below the poverty line on government handouts after a back injury. I would like to point out that I did put myself through university and have 2 careers before this eventuated so I guess I have been in the middle as well.
My conclusion is that no matter how much or how little money you have you are still you. Whether that is a good thing or bad is unrelated to the bank balance.