I don't quite get your implications, but I'll try explaining my thought processes..
[In short, yes, but only relative to the player, time, and myself. Can't really make a comparison between tech, balance, and speed based player]
Before judging anyone based on their top scores, you must know first the nature of the said map. Let's talk about Accuracy first. Some players has better or worse accuracy than others. From there, we can see that a certain top score is relatively bad or good for that kind of player.
You see, in osu! standard, Taiko, and Mania (idk CTB) there are many kinds of maps such as speed type, tech type, gimmicks (idk if this exists in mania or not), etc. From the top scores and the nature of the map we can first determine the strength and weaknesses up to certain point about this certain player. So if this player has mostly 99% acc score on other type of maps lets say tech maps with relatively the same degree of difficulty, and they scored a different type of map with lower accuracy (speed map) let's say then that player is better tech player than speed player.
There are also meta maps, like some patterns are rated higher than others while it's not always accurate. It means that certain chain of patterns are rated higher SR in the current pp system whilst it's not an absolute measurement whether or not it's harder than the maps rated lower. So first, you need to know the maps the said player played before you judge. But yes, yes you can.. Up to a certain point that is.