It's actually not the same for many roles. See the comments from people in this thread alone who scoff at the notion of maximizing compensation. I don't get it personally, but it's not an uncommon thought.
> yet the sales department are the only ones who must have commission?
I think there's a very high likelihood that a salesperson is primarily driven by compensation, and good salespeople will already be working in a commission-driven compensation model elsewhere.
Why would a top salesperson at Dell, HPE, Oracle, or wherever else a hardware salesperson comes from move to Oxide to take less money and completely decouple their compensation from their performance?