Actually, running a company into the ground while giving yourselves big bonuses isn't actually illegal. That's part of the problem.
Of course, nobody in Congress is ever going to change that... otherwise people might start looking into trillion-dollar deficits vs. Congressional perks, and where would that get us?
Also, Congress is never going to voluntarily simplify the tax code. Complex codes = rich lawyers, and Congress is mostly lawyers. The lawyer lobby is WAY stronger in Congress than the NRA or AARP, or similar groups.