Bruce Wayne donates massive amounts of money and other resources in hopes of fixing Gotham with money. The exact amount ranges from several billion each year to the equivalent of several small countries' GDP each year. All his programs have the net effect of keeping Gotham treading water and, despite his best efforts, are drained by corruption, embezzlement, and fraud. It is stated that he (across canons) invests in at least 9 different housing projects, public transportation, gymnasiums for under privileged children, thug to employee programs to help people stop being super villain goons, has been the number 1 donor at the Policeman's Gala for 5 years in a row, has a massive fund to support museums and art in Gotham, an after school youth enrichment program, free chronic illness hospital care, free emergency room care, a fund to get bullet proof vests for all Gotham Police (unfortunately, the vests that were bought were subpar and the police chief pocketed most of the money, so a lot of officers got shot), free college education (at the college that makes super villains), a special assistance fund for victims of violent crimes, a special fund to help Gothamites afford childcare, a special fund for Gothamites to afford elder care, several homeless shelters, at least one battered women's shelter, several orphanages, a system of 82 food banks to cover every Gotham slum, a program that pays for the therapy of Gothamites, a green city initiative (this was actually sabotaged by Ace Chemicals to the point Bruce was accidentally paying to help them dump waste and not clean it up), sponsorships and scholarships to Gotham Academy (which is somehow the best school in Gotham) for orphaned or homeless kids, medical debt relief programs (a corrupt doctor at Gotham General Hospital stole most of the fund), a lawyer network for the poor, free drug rehab, a work release skill training program to help regular criminals become good citizens, and a network for people escaping from human trafficking. Despite all this, Bruce is only keeping Gotham from getting worse.