Feudalism is a worldwide problem including the US, although feudalism is less in the US than anywhere else.
Microsoft is one of the best examples of the rich trying to destroy all competitors. That is what happens in Mexico. If you start becoming successful, the established order will try to smack you down. It happens in the US and everywhere really, but Less here than anywhere, which is why we always have the best economy in the world.
Hey, get a grip on reality. The history of the high-tech economy is littered with companies that no longer exist which once dominated their industry sector. Digital Equipment Corp. (DEC) once was a huge, powerful company in the mini-computer industry in the early '80s, but it was devastated by the PC and microprocessor-based computer architecture. Many of the leading mainframe and mini-computer software companies collapsed in the 90's as the PC became the leading computer architecture. Microsoft is just trying to prosper over the long run, which is very difficult to do in the technology industry. Gates & Ballmer are smarter than your average high-tech executive and they know it will be tough for Microsoft to continue to grow and prosper for the rest of this century.
About the only high-tech companies that have withstood competition over the long term are IBM and HP, and IBM was nearly hammered in the 90's. It took a great turnaround job by Lou Gerstner to bring IBM back to robust health.