The higher the leverage you used, the higher the risk. If bitcoin is at $25000 and you used 10x leverage to open a long position, the liquidation price would be around $22500, if you used 1x leverage, the liquidation price would be below $1000, that is if bitcoin get below $1000. Because of the high risk, it is done in a way the exchange would gain from trading fee and the loaners would gain from the high liquidation price, only you will not be favoured, but you have nothing to pay after you lose the whole $100.