If you tax revenue, the government can be funded with much lower tax rates. Businesses will always pass costs on to customers. To claim your benefit is really for everyone else seems a bit narcissistic.
Take another low-margin business: supermarkets. Do you want to raise supermarket (or other necessity) prices across the board by whatever the revenue-based corporate tax rate is? That would have a substantially regressive overall impact on consumers (in that the poor would bear a greater portion of that tax than their share of income).