I don't think that's entirely true. I think the idea that the only way to "win" in business is by pushing others aside is incorrect. This thinking assumes that the economy is a zero sum game and there's plenty of reason to question that assumption. There are certainly elements in the economy that take value from others without creating any value in the process, but there are also people / companies that get wealthy by creating value, then capturing some of that value themselves.
Even at the most level of the most fundamental unit of the economy -- the worker -- being a team player is just as important as being a good individual contributor. For most jobs, "fit" is a huge factor in hiring.