I guess you've never hung around or had dogs. They are highly trainable, and are happy any time they learn something new that a human has taught them. Mainly because they get treats. Yes, dogs DO strive to become better dogs when they strive to learn what their humans teach them (although, as humans, we have to be careful what they are taught).
Well, this doesn't have much to do with dogs being happy because they get treats. Humans are like dogs, we respond to positive reinforcement. In fact dogs are part of education psychology, Pavlov's dogs are famous because he used dogs to show how we can train children to improve.
Dogs don't strive to be better dogs. Dogs strive to get treats. The owner is the one striving to make the dog a "better dog" and that is in the human's view of what a "better dog" is. Obedient and compliant. Just like many governments want their people.
There's a philosophy about human needs. That many people simply fulfill their basic needs. They need to eat, so they eat. They need to pee, so they pee. They don't think beyond this. They're animals in all senses of the word.
Then there are those who think further than this, and reach higher levels on this philosophical need chart. They aim to help people, do this or do that.
The problem here is that a "better human" is based on our view, not on God's view of what makes a "better human". If humans go to war and kill 50% of the world's population, would God care? Probably not. In the scale of things it's not important at all.
I started a thread about Noah's Ark. It's interesting because God basically said "******* humans are too violent, so I'm going to wipe out all creatures and start again" only he started again with the same creatures and some in breeding and expected different results.
Since then we've had wars to end all wars, we've had the invasions of Iraq, Kuwait, Ukraine and the like and God has done nothing about it. No floods, not getting rid of the problem species, humans being the problem species, in fact humans get more numerous. China has more people now than the world did in 1800.
If there is a God, I doubt he gives a damn. We've had plenty of near total extinction episodes and this has led to life growing back again. God doesn't care about us.