I find this an interesting discussion, and I can see both sides to an extent. It is true that a small but dedicated guild can punch well above its weight class, but there is still a point of diminishing returns at which it simply isn't possible to match a much larger guild, even if on an individual basis you outdo the larger guild's individual members. Perhaps that is as it should be. Perhaps not.
To take a real world example that I experienced this very week - and because Veritas and the Ebon Hawk have already been mentioned - my guild, the Space Ninjas, came in third on Voss this week where Veritas placed first. We are the smallest of the small guilds, consisting of five real-life friends and the son of one of us. Six people/accounts total. We do have an army of alts in the guild, and we are fairly dedicated crafters and have a decent amount of in-game wealth (we would have to in order to get a guild ship, right? And we did that on both the Republic side and the Imperial side for our mirror guild). We had targeted this week as a week we could crack the leader board. I had a plan and the materials stockpiled to execute that plan. Four of us, utilizing all of our crafting characters, busily worked away to finish in 3rd place (our other friend and his son weren't on this week and didn't really contribute).
Four people scored over 4 million points and took third place. It wasn't easy. It required dedication and some coordination - but it does prove that a small, dedicated team can accomplish a great deal in this system with proper planning. Still, for all that, could we have challenged Veritas? No way. We just wanted to get our tiny guild into the top ten and stay there. We did that, and now I really need to rebuild my crafting mat stockpile . . .
Edited to add: Since it's probably relevant, I should also note that all four of us are busy adults with full-time (and stressful) jobs. Just to curtail the no-lifer charge!