Neat edge case! Perhaps SAFE notes or other dividend-paying instruments should account for this by capping executive salaries or trigger dividend payouts at a certain salary dollar amount. Though, admittedly, I've never heard of a founder or executive using their salary instead of taking dividends as an end run around paying everyone their fair share of dividends. It seems possible though.
There already is a cap. Founders have a fiduciary duty to their shareholders and can't pay themselves unreasonably. Lots of gray area, but there is a limit.
