Bill Gates
https://www.stallman.org/microsoft.html
[...]
Microsoft's chatbot in China threatens people who communicate using prohibited words. https://chinadigitaltimes.net/2016/11/microsofts-chinese-chatbot-encounters-sensitive-words/
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Microsoft forced a ridiculous "open" standard, OOXML (used in DOCX files), through the International Standards Organization by corrupting most of the national standards organizations that voted. The specifications document was so long that it would be difficult for anyone else to implement it properly. When the proposed standard was submitted through the usual track, experienced evaluators rejected it for many good reasons. Microsoft responded using a special override procedure in which its money buy the support of many of the voting countries, thus bypassing proper evaluation and demonstrating that ISO can be bought. http://noooxml.wikidot.com/
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Steve Jobs
https://www.stallman.org/apple.html
Censorship
Spying
Worker abuse
Right to repair
Tax avoidance
Other reasons