Worth noting is that usually, you either roll for wealth, which you then use to buy your starting gear, or you get the basic gear your class and backgrounds give you.

If you choose the latter, your background is usually what will give you your initial GP, which is rarely more than 10. 

Rolling for wealth is supposed to give you a LOT of GP that you can use to buy whatever starting equipment you want; it's not actually intended to go in tandem with the basic equipment.