Sorry, don't understand your point. I'm up over $100K in what Apple has paid me the last 5 years over what I've paid them. Not counting contracting gigs and job paychecks, or it would be 3x that.
The original title is "Developer Earnings from the App Store ...".
F###### Apple is just the f##### bank in the process where you develop goods consumed by your customers. By chance that bank is the same company as the owner of the platform you're using to reach your customers.