If the person doesn’t care about it, then it’s not a consequence. Consequences only matter or have any relevance when the person they happen to cares that they’re happening. It doesn’t matter if the game does that, anymore than it matters that a tree grows bark. If someone doesn’t care about it, the fact that it is a thing is still inconsequential to anything else besides itself.
No, that person can say they have a better score than you. They might say they are better than you, based off of that score, but they would be wrong, or more accurately, they would have no way of knowing whether or not they were right. They don’t know if that person they rank higher than is actually playing to the best of their ability in accordance with the rules that grant the points in that score.
@schatenjager is a good example of this: he doesn’t play in accordance with what one might consider standard (read: normal) Hitman playing methods. His score, as a result, could be ranking near the bottom. But, for all we know, if he wanted to, he might be able to clear a mission of all targets in a way so discreet and seamless it could put my own parameters to shame. We would have no way of knowing that based off of a score.
If one will pardon me a moment of immodest egotism, I know in my gut, based just off the reactions to my parameters of perfection as a concept, that I could Silent Assassin the shit out of anybody on this forum in a straight-up contest played side-by-side to measure that very thing. However, you wouldn’t know that from my score or position on leaderboards, because I take my time and am not concerned with how the actual numerical score grades my performance. Somebody doing a speedrun might finish with a full SASO and a higher score than me just for getting it done faster, but might do things like not hide bodies, leave guns lying around, shoot objects for distractions and shoot cameras to avoid detection, and of course would be running at full speed doing all this. Such things might get a higher score, but if measured by style and discretion, I could make them look like sloppy amateurs. The scores and leaderboards don’t mean a thing when measuring a player’s actual skill or ability, only the bottom line of their playthroughs.
So, again, if a player doesn’t care about their rank, then it doesn’t matter outside of needing a certain rank to achieve specific ends, and nobody making a claim that they are better based off of the rank of their score would have any way know that they’re better at anything except accumulating points, and so don’t have any opinion worth hearing on the subject.