Looks like I touched a nerve. Like it or not, how you dress does influence how people see and interact with you. It also has an impact on your own sense of self-worth. (That's not controversial. Decades of research support that.)
Consider the following: On the day of a big legal case, your lawyer walks in to court wearing socks with sandals, basketball shorts, and a hooded sweatshirt. How would you react? Why do you think you would react that way?
How about this: You're in the hospital with your kid, who has a broken arm, waiting to see a doctor. Some guy wearing cargo shorts and a Vans t-shirt wanders in to the exam room. Do you let him examine your kid, or do you call security?
What about your accountant or financial advisor? How would you feel about trusting your finances to a guy in a frayed Metallica t-shirt and ripped jeans? Would you expect him to produce careful and accurate results, or do you think his sloppy personal habits might just be a carry over in to his professional work?
Now, take a look at yourself. When clients see you while they pass through the office, how does that affect their impression of your company? Do you think your appearance instills in them a sense of confidence? Does your appearance help or hurt the company?