Absolutely, but also bear in mind Next and Apple worked on some of the hardest problems in the industry. OS kernel design, languages and compilers, development frameworks. Now you can be an ace developer, absolutely A-grade, and be working on a web app in PHP but maybe in that case your leverage over an average dev might be say 10x. Whereas if the problem domain you're working on is something really critical like kernel scheduler design then an A-player might come up with a solution an average dev might never come up with. Not in 100x as long or even 1000x as long.