Amazon is benefiting from Breitbart readers way more than indirectly paying Breitbart for ad placement. That's how advertising works. Yes, Breitbart gets some revenue. But, one could say Breitbart is funding Amazon more.
Besides, Bezos owns the Washington Post which is not known to be a right wing rag.
Besides, Bezos owns the Washington Post which is not known to be a right wing rag.