Ignorant supervisors (and judging by the comments here, many engineers) who think that engineers can do a graphic designer’s job with no graphic design experience are the reason why so many corporate logos, websites, email templates, official apps, apps in general, and branding in general just look ugly. But they don’t care because somehow a prerequisite for becoming an engineer or someone who supervises engineers is a complete lack of any kind of aesthetic sensibility.
It’s a better analogy than you realize. Cake is generally unhealthy and the less of it you have the better off you are