Couple of misconceptions on your part. The entire continent of Bahn Gaia is tiny as landmasses go. The whole thing can fit inside of Texas, if memory serves, so the landmass Van would have to affect to cover all of Amid isn't that much. The second misconception is about just how much more powerful Van is than Pluto. Pluto has (or had) a mana pool of maybe a few hundred. Van's mana pool is in the BILLIONS, more than most gods. He'd have problems if Alda's entire faction came at him, but on sheer power, he can one on one any of them with ease. He only struggled with Fitun because Morksi was in the area of effect for most of his anti-god stuff. As for Edgar being able to influence Heinz? Edgar is subtle. He doesn't need a [Guider] job to get the job done. He just keeps the baby-killing to a minimum around Heinz and then lets the latter's inherent racism handle the rest. He can even tell Heinz that his actions are evil to his face, while letting him believe that it wasn't his fault, as we saw in Nakiri when Van was trying to register as an adventurer, before he got most of those problematic titles and skills. This would make perfect sense for Edgar if he didn't grow up with them. Maybe if we saw a bit of Edgar's life in the slums, maybe if we saw him having to fight them every day over scraps of food, maybe if Edgar was a member of a "humans only" gang who had to fight against a [Beast-man], [Dark Elf], [Titan] or whatever gang every day over food, money, or territory, this would make sense. But all we know about his mindset is he grew up with them and "can sympathize with them a little" which doesn't explain why he sees them as wild animals, at all.