Is a win a win even when it was sort of handed to you, or is it better to win after actually beating your opponent?

If you win a match or championship because your opponent was injured and wasn’t playing their best, which you and everyone else know, is the victory still as good or not so because you did not best them on equal terms? What if the other team forfeits and not play at all as in this incident, does the championship comes with an asterisk? Does it say ”They are the champions but they may not have been the best team”? Be it by injury, forfeit, disqualification, is the win just as sweet as if you bested your opponent and actually beat them?