There was no gain from helping them...until Zamorak came, in desperation, and was willing to do anything for his people. Now Zaros could have just proven his trustworthiness and made the deal without payment, proving that he was completely sincere in wanting to help the Mahjarrat, but he didn't. He was only willing to ensure he fulfilled his promise if Zamorak was willing to do
anything
in return. Zamorak had to be begged to do this, not because anyone was worried Zaros wouldn't do the ritual--he had to--but because they knew he could very well drain all of them.
Whatever Zaros is going to make Zamorak do, it's going to be a huge step in becoming an Elder God. Because if he achieves that, then nothing else matters It doesn't matter if the Mahjarrat trust him. It doesn't matter if he loses all this power. It doesn't matter if his enemies are stronger and his allies desert him. Hell, it wouldn't matter if Zamorak had the Mahjarrat start breeding, got them all to Tier 2 Godhood status, became Tier 2 himself, and horded all the Elder Artifacts. All of that wouldn't be able to stop an Elder God.
Also, I would normally make a joke about the World Guardian getting furious at Zaros for killing Zemourgal and how silly that would be...but then again, the WG did this over V...so I'll give you that.
Runescape doesn't need a hero...it needs a villain. An all encompassing force of evil that will remain ever-threatening and use chaos to make the peoples of Gielinor tolerate each other, grow strong together, and fight side by side against this evil. I am that villain.
23-Nov-2016 00:39:48