Do you think that Megatron or the Decepticons should be more fleshed out in a series?

We always see the same old story line the war between Bots and Cons they are always going around and around with Bots as the angelic heroes of goodness and Cons as the empodiment of pure evil. So why can't the Decepticons be humanized and made relatable to some extent?
Some story lines include Optimus and Megatron being former friends only for Megatron to be the one responsible for ruining that friendship and starting the war but why can't it be the other way around or at least half way? Why can't there be a story line where Optimus reveals that Megatron is the Con he is because Optimus did something horrible to him.
I say this because the Con army is made up of half their race from what I've heard if that's true they can't all be bad that's not realistic and they all would have to have a reason for following Megatron.
Some story lines include Optimus and Megatron being former friends only for Megatron to be the one responsible for ruining that friendship and starting the war but why can't it be the other way around or at least half way? Why can't there be a story line where Optimus reveals that Megatron is the Con he is because Optimus did something horrible to him.
I say this because the Con army is made up of half their race from what I've heard if that's true they can't all be bad that's not realistic and they all would have to have a reason for following Megatron.