While I don't disagree in substance, it's the order that twigged me. My impression has been that later rounds (B+) are all about risk attenuation like hiring steady hands to manage linear growth once the product is proven vs. early rounds (Seed to A+) are for PoC and scale, whereas I think of an IPO or private equity round is essentially an endogenous-innovation-death, and the company at that stage is just about optimizing existing cash flows, with any non-linear upside coming from reinvesting those flows to buy new startups.
Market rates for consultants are also basically double or more what they are for employees, so market rate for a founder should be measured against the median 250k-$1m a company would have to budget to get someone to do the equivalent job of a founder/dev/product-manager from a consulting firm, etc. If as an investor, you have put in $5m to a company you want to grow with an 18-24-month runway to the next round, that the founder is paid 2%, and not 10% of that is probably not positively correlated to the success of the venture.
Pre-revenue, I sympathize with minimum survival low founder salary as it's just a flyer at that point, but the moment there is revenue involved and now you have to grow and scale, founders could be taking a percentage of investment as the price of admission. Money managers who do almost nothing charge 2-3% to manage funds and rake 20-30% of any profit.
Experimentally, I would propose that a founder with skills who is building a tech product should be taking 10% commission and management fee on any investment as direct comp and 20% of the return on it at the very least. Maybe these numbers aren't right, but comparing what a founder does to what a fund manager does should yield some principles for evaluating founder comp.
If as an investor you allocated $10m to a hedge fund for 5 years, you'd be paying 2-300k/year to the manager and lose at least as much to inflation if it were in cash, and then if the next valuation was 3-5x, you'd be returning 6-10m to the founder for your 20-40m net profit. Seems like a lot, but compared to index funds, bonds, or cash that doesn't have that growth profile, that's still a very good deal.
Anyway, just thinking out loud about it, but incentives alignment is a really interesting problem.