Bezos, Musk, Zuckerberg and many many others do everything in their power to reduce costs including paying less taxes, which includes using tax havens and tax loopholes that they themselves make sure to keep open by "lobbying" politicians, so effectively to work in general means to work for mostly cheaters and there is no way to avoid it, sure you can stay unemployed and stay clean of the moral corruption that entails living in a capitalist system but many don't consider that an option; and is not like buying from them is any better morally speaking, for the exact same reasons.