The judicial system sometimes use sentences like this to set an example for other people to think twice, before they commit crimes like this. Ross Ulbricht for example .... is an American serving life imprisonment without the possibility of parole for creating and operating the Darknet market website
Silk Road.... everyone know his sentence was a big f@ck you message to everyone that wants to do the same thing.

In some countries people gets longer sentences for financial crimes, than what they get for murder and rape and violent crimes ....weird but true.

Actually, no one thinks twice when they commit crime and no punishment is enough for anyone to stop from it because absolutely everyone thinks that they are the only ones who won't get caught up by police.
Overall, government itself is a group of criminals. The problem is, this group of criminals want to have an exclusive access, control and power on everything. When there comes someone with its own plan to become a criminal in certain niche, if this person or group won't cooperate with government, will automatically turn into its enemy and will end up in prison.
I really hope that everyone knows that governments are actively into money laundering and illegal activities but they don't punish themselves but this is a different subject.
By the way, have you guys seen movie The Midnight Express? It's a very interesting old movie about what happens in Turkish prisons, watch it if you have a time, it's really a great movie.
Guys, what's your opinion about prison system, is Turkish system better to lower crime rate in country or is Norwegian system far better and beneficial?