OpenAI and Amazon are two very different companies. Some companies are aggregators that focus on doing a bunch of things like Microsoft or Amazon. Others focus very heavily on doing one thing well like Netflix. And I think OpenAI is the latter type of company as opposed to the former.

Granted many companies start off as the first and transition to the second type of company but OpenAI is so far away from that you'll probably have a good 10-20 year run before that.