As a case study in simplicity: our sales people get 1xMRR for each deal closed, or 2xMRR if the deal signs an annual contract. SDRs get a flat amount for each demo sat (doesn’t have to close, but does have to be accepted by the AE). The amount is equivalent to 0.75xMRR for a typical customer.
That’s really all you need in SaaS. This has scaled from less than 1M ARR through to… more than 100x bigger than when it started.