Ovinomancer
No flips for you!
But, isn't the additional information the result of a higher check? Isn't that what higher DC's are for? If I get a final score of 20 on my check, why am I getting different information than you who also scored a 20 on a check. it's not like we'd jump different distances. Or climb that wall faster. Or be more sneaky. Or open different locks. So, why are you getting better results than I am for exactly the same check?
I suppose you could do some kind of tiered check, where a higher roll gets you more, but no, that's not how I do things. If the DC is 10, a success is the same if you roll a 10 or a 20.
As for why he's getting better results, he invested character resources into being good at that skill, you luckily rolled higher. The reverse question of 'why should you get more because the RNG favored you this time over the guy that spent one of his very limited choices on being good at that skill?' I don't think luck at the RNG should dictate the level of reward; that downplays player choices.
To be clear, success gets you useful information. Proficiency gets you more useful information.