2. Scammers and criminals hide behind attractive appearances : To deceive people, some criminals dress presentably because they want to divert the attention of their targets. In my location, most Ponzi scheme operators always dress corporately at all times, just to give the people the feeling that their funds are in the custody of responsible persons.
This feeling often comes to me when I see very elegant people in elegant and attractive clothes, I feel that they wear this dress to hide their false and deceptive reality. Of course, not all elegant people are necessarily deceptive, but most fraudsters care about their external appearance.
Personally, I do not think that an overly elegant and decent dress is necessary for work, especially for men, as for women, it is necessary to take good care of their external appearance.
Also, this depends on the type of work. In work that requires receiving customers and dealing directly with people, employees inevitably need to wear decent clothes, as for other jobs that require doing some muscular effort, it is never appropriate to wear such clothes.