That's an uncharitable way to phrase it though. The point is more like designers are wannabe Picassos who had bigger creative dreams for their work to be based solely on its own merit without any commercial context, but they ended up settling for a day job solving mundane business problems.
It's no different from an engineer getting a safe job at an established company instead of taking the risk to found a company themselves. Only it's a lot riskier for the artist since there's a lot less money in the (working) art world than in the startup world.
