A flight to the Virgin Isles was delayed overnight, so a strapping young man named Richard Branson chartered a plane to the Isles with money he didn't have. His next move was to create a sign that read "Virgin Airline, $29 a ticket", which he showed to his fellow passengers. They all paid up and all flew to the Virgin Isles that night. Was he motivated by a "passion to help people get to their destination"? Hell no, he had a girl waiting for him and more than likely he wanted to get laid.
That is the only attitude that works for an entrepreneur, the ability to identify problems, find solutions, and get people to pay for them. If you say you have a passion fr a technology or a clean architecture, or that you want to work on challenging problems, you belong in an established company, either as a lead, an architect, or in the R&D. Entrepreneurs understand that technology is but a means to an end, and focus more on solving problems than gold plating something or waxing philosophical about software. They use the tools at hand to solve a problem to the best of their ability. They're not motivated by some grand scheme, their passions are more personal.