Other people money

I didn't know money could buy me or if I had money I could buy people well other people money is that way of the master of universe or servants of the people. We all depend on this it's the root of the finance sector of our life but is it a master or servant initially other people money is involved in banks and then it's gets to a individuals hand and we roll on it from paying bills to taking out loans or even our salary and lending to mortgage that's the mastering but when it falls to the predator we don't pay it back and need to pay back if it's due and the latter means we become master's of other people money or the term other people money is a servant to the people. However in the same case if it's the opposite the mortgage for example it's paid back and the bank made money out of your salary and the mortgage repayments then other people money is a master and in the same way with all other finances.