That's only true in some instances for some combination of high margin, not easily reproducible, or low volume products that serve wealthy purchasers.
The reason Walmart killed everyone was because purchasers valued saving a few dollars rather than being taken care of by employees. Similarly with airlines, which Branson wasn’t really able to expand beyond the wealthy NYC-LA-SF routes.
Another reason Walmart killed it was because they offered more convenience at a lower cost. That’s what people choose.
It’s also why people choose vehicles over public transit: point-to-point convenience for comparable prices to stringing together public transit and car services to get around.
The reason Walmart killed everyone was because purchasers valued saving a few dollars rather than being taken care of by employees. Similarly with airlines, which Branson wasn’t really able to expand beyond the wealthy NYC-LA-SF routes.