The late co-founder and CEO of Apple, Steve Jobs, was well-known (some would say notorious) for his attention to detail when it came to the design of Apple products. For example:

He insisted that the inside of a Mac computer be as beautifully designed as the outside, even though no one would ever see it.
It took more than two thousand beige samples before he found the right color for an early Apple computer.
When he was in the hospital dying of cancer, he asked the hospital staff for five different kinds of oxygen masks so he could choose the one with the best design.