What so we dont get hurt?
Okay then...how can they hurt us if these forces aren't literal?!
So why are we told to fear them?
Alright, you're making this alot more difficult than it should be.
We are told to adore Him and respect Him. When religious figures and followers submit to his greatness, it shows our respect to him.
(In the same way a kid would listen to their parents, when they say not to touch a hot pot.)
In religion, God will bless us when we respect and love him, and he will judge us when we disrespect him.
The fear of God, is having reverence that comes from experianceing God's power directly in our own life.
When God's awesome power is fully understood, by having something happen in your life, you can only start to fear his power, to know what they could fully extend to.