I assume that the 'substance of what they need to do', includes being able to read a situation well enough that they can figure out how to dress more it. Most people have this ability by the time they hit junior high.
So, then, you argue for a form of conservative confirmism, "do what other people do". Furthermore, you argue that people who see things differently have yet to show the skills expected of a junior high school person.
That's my understanding of what you're writing, basically, "just accept it and live with it, and figure it out, and don't try to change it".
I really think that's not a very good recipe for any society that needs to evolve, and every society needs to evolve (or in the case of the USA present, apparently devolve. Perhaps D.E.V.O. was right.).
If they've gotten to that point in their careers, or are in an industry that accepts that, then all the power to them.
Why? What's the point? I'm talking about people who work in offices and labs, not people who work in factories, in case that's not clear. Why, again, should somebody who never meets the public be forced to dress either up or down from what is functional and comfortable? (N.B. I'm not talking about extremes here, or disruptive kinds of attire, i.e. no speedos at a baptist convention, so to speak)
I did. My point remains. These people who lead the industries I'm referring to do not dress up. Many of them EVER. Most of them, like me, take a "take it or leave it" attitude.
If you're hiring brain power, why do you care about the package?
Where did I say that? I've stated in other threads that it's obviously industry and job-dependant. And that's part of presenting yourself well in an interview: that you have the basic skills to figure out what your appearance needs to convey. It's a very very basic lifeskill.
Why do you insist that appearance conveys much of anything. People who argued against rights for blacks argued that appearance mattered. People who argued that Japanese people were subversive in 1941 argued that appearance mattered. Suits and ties are even more trivial, they are an option, they don't even have to exist, so why should they convey anything?
In other words, you argue that appearance matters, and you have insisted, repeatedly, that people should conform.
To which I ask two questions:
1) Why does appearance matter (in this context of somebody who does not go out into the public where there are expectations)?
2) Why should people conform to this? Of what value is it to know that the person conforms to the 'coat and tie' mentality?