Any time a market economy is corrupted to just serve a few people, and supported by laws, an opening appears for the smuggler.
Mostly because of some unjust set of circumstances that sets up an opportunity. Many might do it just for money, but their is the smuggler that disagrees with some circumstances and is technically illegal while doing something for a moral or just purpose.
In India during colonial times their were many laws to send profit back to England, they were not based on making India better, nor a fair ideal, but for profit of companies in textile industry. So many people made their own cloths, a form of civil disobedience akin to smuggling.
The underground railroad that brought the slaves north, also was a form of smuggling.
And many resistance movements in WW2 were also illegal, but were moral, since they apposed the wrongness of the occupier that did for its own benefit not for benefit of all.
So the concept of the smuggler that goes against an established system is an old concept, but as in most things it also has to do with what the reason for the actions are. Is it only for personal gain, or for the gain of many people.
For instance Han Solo returned to help Luke destroy the Death Star.
http://www.swtor.com/info/holonet/classes/smuggler