Fixed-ratio schedules are used when you pay your employees based on the amount of work they do. Fixed-ratio schedules are common in freelancing, where contractors are paid on a piecework basis. Managers like fixed-ratio schedules because the response to reinforcement is usually very high (if you want to get paid, you do the work).
In Web2 companies, cash usually comes from investors and there is no value returned to them for years. Ownership is largely concentrated in the first handful of employees along with their investors.
APIs create an environment where anybody who wants to develop on top of their platforms can do so. No need to send you a formal request, just take those APIs and innovate. Then, if someone builds a great new service or capability, we'll work out a commercial licensing agreement so that everyone makes money.