There are a number of reasons why Damon Dash is not rich. First, he has been involved in a number of legal disputes which have cost him a lot of money. Second, he has made some poor investment decisions, including investing in a failed music streaming service called Tidal. Third, he has a reputation for being a spendthrift and has been known to blow through his money quickly. Finally, he has been estranged from his former business partner, Jay-Z, for many years, which has likely cost him a lot of money.