When the Dyson was invented, the bag-vacuum incumbents wanted to licence his technnology and shelve it. He had to go solo to "bring his superior technology to m

When the Dyson was invented, the bag-vacuum incumbents wanted to licence his technnology and shelve it. He had to go solo to "bring his superior technology to market". What's wrong with trying to get rich on a product? And using the profits as seed money to bring more useful things to market?