"motivation" is usually the answer. Motivation can be (gaining) money, power, politics, etc.

Which begs the question, how do we raise future generations to have motivation which decreases malfeasance?

I do not think there is a simple answer, but there is one out there...

I for one teach kids to hack and lockpick every chance I get.

When you can pick every lock around you it changes your worldview forever.

Kids should not avoid something wrong because they are physically stopped by a lock.

They should avoid it because it is wrong.

Better they learn these skills from someone that will teach the ethics to go with them.

I think this is a big problem for liberalism in the future. When we have 20 billion people and technology is more powerful and ubiquitous, big consequences could happen from individual bad actors remotely. Even if only the tiniest fraction of people wanted to do bad things, there would still be quite a few of them and they'll have more access as everything is more networked together.

There will never be 10 billion people alive at the same time, let alone 20.

What's the certainty there? Could you expand?