A good guild shall atract people
Not necessarily.
This is true. The Guild Knights had over 150 players or so before we disbanded, but I would not say that it was a "better" guild than the Explorers, Knowledge Seekers, Crystal Warriors, Twin Blades of Arete, Dark Empire, and so on.
As a side note: The Dragon Council professes to be good, but I still say that this is a matter of opinion.