Are you confusing revenue with profit? Yeah, a lot of money pumps in one end of Amazon retail and out the other, but there is very little margin: the $550+ billion in revenue on the retail side, as I understand, brings in significantly less net than the $90 billion in revenue on the cloud side.

And government contracts, where one might expect support or opposition from a potential cheif executige who has made overt promises of purges and other uses of office to punish enemies and reward friends to make a big difference, are an important part of that (not just that one $1B contract.)