One thing about RuneQuest and Glorantha that some find it difficult at first is that the cults and occupations are deliberately not balanced. Orlanth has more and better magic than Waha. Or Storm Bull for that matter. Yelm has far more and better magic than Yelmalio or Polaris. Ernalda or Dendara are vastly more powerful than the Grain Goddesses. Humakt’s fighting magic (True Sword, Sword Trance, Shield, and Sever Spirit) makes many other war gods look laughable.
And that is just fine. Some cults have better magic. They survive because of social cohesion, tradition, etc. Another thing – not every human activity has a Rune spell connected with it. And some activities that do have Rune spells connected with it have only a few well-trod myths. The new heroquesting rules help show how cults form and change in Time – needless to say it is not as easy as some assume, and yet happens far more often than others seem to assume!