I'm not really complaining about this phenomenon, as I've certainly benefited from it on a few occasions now, but...
It seems to me that a question in the form "I can't be bothered to read my copy of the rules. Does card x work in way y, or not?", which is answered inside of five seconds by a passing diehard ("It certainly does, as it clearly says on P13 - I've c&p'd the relevant paragraph here") will before long earn the answerer an easy three figures of reputation, as everyone else who looks at the question goes into an upvote-clicking frenzy.
Far be it from me to say there is no value to an objectively correct answer! But I'm wondering if I'm approaching things in the wrong way. Here's how I do things. If I ask a question and I get a brief, but obviously correct answer, I bestow upon that answer a green tick. If I get an answer that goes above and beyond, is interesting, or makes me laugh, I may also upvote.
If I see a correct answer, I don't auto-upvote it (unless there's some controversy in the answers, and a wrong answer is in danger of gaining supremacy!). Should I? I guess it's valid to say that an answer that's correct looks more obviously correct if it's been upvoted a dozen times, which could reduce confusion.
At the risk of a glib analogy, suppose on the Mathematics stack exchange someone asks "What is the answer to 1 + 1?" Within three seconds someone has answered "2". Should this earn ten thousand points of reputation over the years because it's (under most reasonable circumstances) correct, while the person who cracked Fermat's Last Theorem only earns a few points, because no one has the time to wade through the hundreds of pages of proofs that made up their answer.
My philosophy is this: upvote more questions that aren't basic and more answers that aren't obvious. That green tick is reward enough for people (like me, quite often) who are just on the site all the time with nothing better to do, and who can find the appropriate paragraph in a rulebook! Or have I got the wrong end of the Stack entirely?