scruples didn't hurt. He had little problem with raiding others ideas and pushing them out of the market. Many of the things he did to get on top of the pile would be actionable today.
Google suggests otherwise - industrial-scale copyright infringement? Just ignore it and no one will do anything about it. Global tax evasion? Get the law changed and move on - tax is so "statist", this is the (new) age of the unaccountable corporation. They're not doing exactly the same things Gates did, but they are doing their things in the same style, and that's what actually works.