Some of those things are choices that matter and should impact your respect for someone else. Some are not, do not, and should not.
Personally, as a controls engineer who frequents messy manufacturing facilities, dressing in a suit gets in the way of getting work done. It subtly conveys "I'm too important to get my hands dirty, I'll leave the grunt work to the grunts." That kind of unwillingness to do whatever's required to get the job done is a point against those folks in my circles. I do understand that people who come to work in a suit may have different struggles vying for status and trying to send the right social signals in conference rooms, and I don't envy them those tasks - but please don't think less of me as a human because of what I choose to wear.
> please don't think less of me as a human because of what I choose to wear.
But doesn't:
> dressing in a suit gets in the way of getting work done. It subtly conveys "I'm too important to get my hands dirty, I'll leave the grunt work to the grunts."
mean that you think less of others because of what they choose to wear?
But when those personal choices are immaterial, whether choosing to over- or under-dress, they shouldn't affect what I think of others or what others think of me.
I assume tech companies are more casual than big law firms, and that things may have gotten more casual in the decade since I left the law.
I sometimes would have to go to nearby tech companies we worked with and the leads who would greet me would mention something like "oh sorry we didn't tell you that you don't have to wear a suit". You have to explain yourself and there is the implication that wearing a suit is somehow inappropriate.
If you're the only one wearing a suit, you look overdressed. It's as simple as that.
Not true. If you are a menswear enthusiast who is genuinely into fine tailoring, then people will respect it and even show interest. Generally, having hobbies and interests adds to one’s character. Now wearing a suit because you think it will make people take you more seriously will get you some side eye.