Or they're built on the idea that they can sell convenience to people and make a lot of money doing so.
It's not so different from a lot of other businesses. First class and main cabin in a flight gets you the same airplane, the same destination the same travel, but slightly different chairs and some food. Is anyone paying for first class suckers? What about if I buy a skip the line pass at a theme park? Am I a sucker because I paid more than the base admission price? Or is it a trade that I'm willing to make because I have excess income and want to actually ride the rides instead of standing in line all day in the heat?
Why do executives have executive assistants? Are businesses all suckers?
I know I'm getting ripped off by doordash, but I'm hungry and I'm busy and the harm of getting ripped off just a bit is way lesser than the time it'd take me to get or prepare food myself. That $10 hamburger that I just paid $25 for is outrageous, but the 30 minutes I saved is worth the $15. If you make mid-six figure income like most of big tech, that's a small small price to pay for time.