2008 was a result of years of deregulation, certain rules like the Glass-Steagal Act which prohibited commercial banks from engaging in high risk investing came into being after the economic collapse of the 1930's (great depression). Dodd-Frank and Simpson-Bowels sought to reintroduce these limits to the financial sector, which was partly motivated by anti-Wall Street sentiment at the time (not just from Occupiers, just people in general). So that's somewhat, albeit indirectly an appeasement to the Occupy Wall Street movement. Btw Trump not only got rid of the Wall Street reforms he introduced laws that protect Banks from class action lawsuits.