He didn't just return to society though. He returned to a place with more prestige, than most people of the same society will ever experience in their lives.

While I agree with the sentiment, that criminals need a way back into society, that doesn't mean they should have a right to return to their old lives. Especially if those lives includes representing there nation at international events.

He should have to deal with the consequences of his actions and that should include that certain actions exclude you from certain positions in a society, no matter if you served jail time or not.

Also, that nothing is encrypted but I guess encryption can be broken.

Our way of encrypting things is incredibly basic. We are basically just asking like a toddler: What number am I thinking of? If you guess correctly, congratulation you broke the encryption.

A civilisation just a few decades ahead of us will have no problem breaking even the most modern encryptions. Any advanced Alien race, will look at our way of encryption, like we look at the Caesar-Chiffre or the Enigma-Machine today. Clever for it's time, but no real hurdle for a modern code breaker.