Wiping all banks‘ balance sheets might not achieve the redistribution you‘re hoping for, if you think a minute about what that would actually mean (i.e. everybody loses all of their savings, and nobody has to pay back their loans).

Besides that, the status quo emerges from the set of laws and regulations applied to banks. Removing the banks and keeping everything else unchanged is the best way to get an exact copy of the bad outcomes you‘re hoping to prevent.