He was also fined $4 million but then sold his company "In 2017 the EPA hit Geouge with a $4 million fine, after which he sold Spartan to another company."

However, the $10m is revenue, not profit, so between the $2m plus the $6m he likely won't come out ahead.

That's 20%...

Can you imagine if google, who to date must have done say $2tr in sales (guesstimate), got a $400bn slap-on-the-wrist?

He was already fined $4 million before. Also, $10 million in sales ≠ $10 million in profit.

I'd say the year in jail is more than a slap on the wrist. That's in addition to the fines.