Weill, instrumental in the repeal of the Glass-Steagall law that allowed the marriage of commercial and investment banking, is considered the father of such financial supermarkets.
Calls to revive Glass-Steagall, which would end securities and investment banking activities by commercial banks, have never been stronger since the law was repealed in 1999.
That law - from the 1930s in the aftermath of the Great Depression - separated commercial and investment banking and was eventually abolished in 1999 under President Bill Clinton.