It's not debatable at all, he was convicted in a court of law! My compassion is nearly unlimited for those who deserve it. Highly paid software developers who think it's OK to steal code from their employers are pretty far down the list of deserving people. When you're feeding your family based on software you pay your coders to write for you, I'm guessing you won't find the "compassion" in you to let them steal that code at will.
You need to read the article again and really think about whether this developer was knowingly stealing from his employer. If the article is true, what this guy took was insignificant and would not harm Goldman Sachs. To put him in jail 7 years is unconscionable.
It sounds like you would have no problem putting one of your ex-employees into jail for years if they took any insignificant data from your company. I would not want to be one of your employees.