Amazon is not going to change from the inside for anyone making $1M. If you go in thinking it is, you're deluding yourself and will be much less effective than if you just accept that Amazon is what Amazon is and you're whoring yourself out to them for $1M/year.
Your paygrade needs to be at least $100M/year to have a reasonable shot of changing the culture of a large company. Most likely, by the time you get up there you realize that companies are what they are for reasons, and if you try to change that you will end up changing yourself out of that $100M job rather than changing the world.