Only when the product gets used in a non-typical way or in non-typical circumstances, do the (inevitable) bugs appear. They didn't think their design choices through or they didn't know the limitations of the tool used.
So bugs are considered a known risk, and are managed. Hardware, for example, is swapped under guarantee. The most ugly bugs are fixed, and others are too costly and wait until a redesign.
But the employer likes their qualities:
- he gets a mostly rapid schedule,
- he gets an employee that doesn't get lost in abstractions, and
- he gets to charge the customer again for the next major iteration
Basically they get him an MVP, and the customer keeps paying for each design iteration. We all know how important that is to the bottom line. To him Quality is optional, like benefits are to a job: they end up being important, but the salary usually comes first.