Some more graphs to look at:

Total compensation (including non-wage benefits): http://research.stlouisfed.org/fred2/series/RCPHBS

Cost index (attempts to control for composition changes): http://research.stlouisfed.org/fred2/series/ECICOM

Employers have shifted compensation from wages to benefits.

In answer to your question of what to do about it, very simple - eliminate the tax advantages of assorted non-wage benefits (e.g., treat employer-provided health insurance, 401k matchin, etc as income).