Enjoy fashion, but dress for the occasion. Body shape is a determining factor, but a dresser blessed with a sharp eye will know how to make anyone beautiful. Rieber even makes office and home calls, taking measurements for suits, arriving with swaths of fabrics, taking notes on who the client is going to meet with, where the meeting will be held and what the nature of the meeting will be. There are a lot of variables. If he's a manager of a bank, you can have him in suits five days a week.
Men tend to find something that works and stick with it without much deviation.
Often in corporate life, people feel a bit of fashion confinement. Clothes really do matter. You have to have the ability, but clothes are part of the package. Wear what you feel good in and look good in. You're going to know what that is.