Don't mind it, you can be the best web/graphic designer. Art or not, in the end there will always be a shit client that wants to change the font to Comic Sans.
It’s not design for design’s sake
Designers notice the gap between functional and delightful, and that’s why we obsess over the little details. (littlebigdetails.com) But there’s a very real tradeoff between perfecting the design details and building more functionality: getting the details right often means moving slower.
So it’s not enough to say “it looks better this way”. Designers need to make a case for why the team should spend time on fit and finish.