We already have an annual wealth tax on homes, the major asset of the middle class. It's called the property tax. Why not a small annual tax on the value of stocks and bonds, the major assets of the wealthy?
Most Americans stopped looking at what was happening through a variety of coping mechanisms - starting with women entering paid work and then everyone working longer hours and using their homes for raising equity and generating more money through debt. The typical household basically staved off the day of reckoning.
The only sure way to stop excessive risk taking on Wall Street so you don't risk losing your job, or your savings or your home, is to put an end to the excessive economic and political power of Wall Street by busting up the big banks.