Oh gosh, thanks, Ornella (*blushing*). And Vildy, your musings are always so interesting. You really do have a gift with words.
I think that "perfect fit" becomes especially important when you have specific style goals. For example, if you are on Team Polished - it's a no brainer. If you strive to look elegant, dressy, chic, crisp, sophisticated, minimal and lady-like - perfect fit is an important aspect to creating that vibe.
However, "perfect fit" becomes less important (but of course still important in order for garments to look somewhat attractive) when you'd rather strive to look arty, edgy, retro, vintage, bohemian, maximal, casual and RATE.
I hope that makes sense.
Ornella, you have a great eye for perfect fit, and this comes through loud and clear in your style. You are there