I didn't get into the details because I was adamantly against doing it.

What you're getting paid at Amazon has the dimension of money/time; a bribe is presumably just money. We need to know the time period to reasonably compare the two :). Otherwise it's like saying "the distance to city is much larger than the speed of my car".

tbh, I've already said more than I'd like to about the matter.

Did you consider reporting the people who reached out to you? Is there even a method in which to doso? Not sure if that would internal or externally.

I work at a different large tech company and there are absolutely internal ways to report any kind of suspicious contacts. I'd be shocked if every large company didn't have at least some way.

Even if there isn't a way, you just lift the phone and dial the general counsel.

How does it matter? Take away is the money offered is not trivial and looks like much beyond the money needed for splurging on a nice new German car.

Kudos to the OP on taking a moral stand. How many would do that?