Tad, you are missing the point.

ISAF Racing Rules of Sailing 2001-2004

BASIC PRINCIPLE
SPORTSMANSHIP AND THE RULES
Competitors in the sport of sailing are governed by a body of rules that they are expected to follow and enforce. A fundamental principle of sportsmanship is that when competitors break a rule they will promptly take a penalty or retire.

PART 1 - FUNDAMENTAL RULES
1. SAFETY
2. FAIR SAILING
A boat and her owner shall compete in compliance with recognized principles of sportsmanship and fair play.
A boat may be penalized under this rule only if it is clearly established that these principles have been violated.
A disqualification under this rule shall not be excluded from the boat's series score.

What you are talking about is CHEATING and hoping you don't get caught or that the real winner doesn't protest.
It is not about some $10 trophy.
It is about fair competition and the "thrill of victory".
Forcing the true winner to file a protest and go though a hearing, tarnishes their victory.

And not just the real winner, what if there were ten boats and you finished fifth?
Those boats that finished behind you have just as much right to a fair score as the first place boat

If all you wanted was a tan and a t-shirt, why wouldn't you register properly?