I like corporate taxes being tied to the ratio of the highest compensated full time worker and the lowest compensated worker. Note that I specifically said compensation and not wages and full time worker and not employee.
If the highest compensation package is stock options worth 30 million and the lowest compensation is an "independent contractor", that scrapes by on 30k a year. The ratio is 1000, some standard equation would then define the corporate tax rate. Hopefully a ratio that high would be 100%
That's why I said full time worker. If I work for company A, but 90% of my time is dedicated to company B. My effort primarily benefits company B, therefore my compensation counts to company B. Really causes a problem for companies that employs sweatshops.