I think you guys are looking at this backwards. The use or avoidance of gems doesn't imply anything about skill.
This tension exists because gemmers buy in-game advancement which in most games is the marker of skill. The fact that gemmers carry these markers leads non-gemmers to resent the built-in assumption that the gemmers are "better players" because they carry these advanced progression markers.
Supercell makes a profit because they allow people to buy the markers of hard work. And if the people who don't buy them get resentful... Hey, that only fuels the competitive instinct that maybe turns some of them into gemmers also.



But I don't hate supercell as I hate other developers who allow in-app-purchases, because supercell makes the purchases very expensive, thus minimizing (or limiting) the handicapping.



