Bill Gates took lots of ideas from others and just out-executed everyone else to become the richest man in the world.
well, personally i think msft has done much damage to the software industry, all in the name of preserving its cash cows. surely msft is a triumph of marketing second-rate software.
but i don't see the connection. there are lots of examples of folks from with a company leaving and forming a competing company. in software they often have an advantage because they get to start from a clean code base without all the legacy cruft. say avant! or nvidia and sgi. but what's the logical end to all of this? look at nike or nokia. how many shoes or phones do they actually make themselves?