In past sims games I figured out ways to give the money away. Befriend poor sims and give them expensive gifts. Give expensive gifts to your children before they move out or go to university. Your uni sims can upgrade their house in Britechester. Other students can move in before the first graduates and continue improving the house. It'll make a great student house for generations. A third way for a family to share the wealth is to have relatives or homeless npc sims move in, enjoy the benefit of nice things, get jobs, improve skills, eventually move out.
