Slight understanding of blood and elements.

Why in this dungeon do goblins act more harmoniously than corrupted or even normal goblins?

The answer is simple and macabre, because they are controlled, they are just mechanisms that only have freedom in the aspects not specified in the spell that controls them.

And they are controlled by a pretty strong spell, strong enough so that Viktor's vision doesn't easily detect this spell.

Perhaps strong enough for his master not to know about this spell.

Viktor wanted to believe that it wasn't so, that his master simply didn't tell him because it wasn't that dangerous. But he knew he couldn't trust this. His master in the end is also a being with limits.

There are more powerful beings that can kill the master. And beings that can hide from him.

These beings could have more than enough motives to want to kill or capture Viktor.

For example, the eye for which the system had "so warmly" mentioned that a certain polemos transmitted something about Viktor being special...