So that’s sound like the big corporate standardized/unionized salary/perk schedule. At each degree level you get X salary bump, X office size increase, X window options for office, X options with the secretary pool, ... That was never for me. I always would rather just cut out the middle man and get the maximum reward.
Tried my own business for about a yar - found out that if you go out on your own, you have to be the accountant, the sales, the delivery, developer ... everything. Ended up doing a lot of “side” things that I thought were distractions.