The answer frizzed me. The point wasn’t in the suit or tie!
The reason of his success was the good communication and great public speech. The only thing I was interested in is how to become successful speaker and negotiator I have started to read books on psychology of success and I was better every day.
After 6 months my earnings were the same as those of my friend; I’ve succeeded. I’ve concluded that the tie gives special impression but the communication gives the best impression.