Please understand that I'm not trying to beat you up about your beliefs, and I'm sorry you feel WGT conspires to stick it to the scoring leaders. But I can't see a big WGT plan to do that.
Unfortunately, since you yourself can't remember your score card, it's a moot point now. As to CC Tourneys, I am my CC's Tournament Director and I compete in most of the ones my CC runs. I also keep watch on results and I haven't seen it do "every time" what you say you "always" see it do, put the last score posted to the top. In fact, quite the opposite.
If you read the "How are ties handled" again, you will see that it would require each player to shoot exactly the same score on each hole for there to be a complete tie that would go to the earliest score posted tie breaker. Not likely to happen.
To answer your question about trusting the score keeping, I think it would be fairly easy to program the software to search and compare the scorecards to follow the Tie Breaker sequence. I personally don't see why WGT would play games with the score keeping. It would bring into question the results in all tournaments, RGs, and Brackets as well as the complete Virtual Tour results. There is no benefit to them to do that.
You could always ask a Mod to explain why they choose this system instead of splitting winnings evenly between the top scores.
phred952