Well, as sad as it all is that honest hardworking folks are taken and being held captive, it's a bit overly dramatic at the end there..
They're not soldiers being sent somewhere against their will, they chose this profession even when aware of the dangers.. most are in it for a paycheck, not to save our free Western World from utter chaos. I'm sure they don't feel like warriors for democracy and fair trade.. they're just doing their jobs, making a living, like many many people that have hazardous jobs..
And if the tanker owners didn't want to squeeze every last drop of income out of every last drop of oil, they could have already given these ships an awful lot more protection, I would think. They're also the ones that are partially responsible for, for example, ruining income for local fishing villages thus driving some of the deadpoor fishermen to piracy. Maybe instead of urging others to do something, they could also protect their own employees a bit better with legal yet non lethal means to repel attacks on their vessels.
Ultimately the big wigs only really care about money, not human life. If they did, they wouldn't send their discarded ships to those very nasty scrapyards in India and such, knowing about the conditions and that tons of people die, get maimed, poisoned, etc, during the dismantling of their ex vessels, for nearly no pay at all...
I'm not saying they're all like that.. but.. money and power often corrupts.. and you only have to watch some of those documentaries about the subjects to see what the reality is like... not pretty.. though it's pretty for those guys in the ivory towers on their big leather seats, of course.
But yes, ofcourse there should be much tougher punishment for those that commit piracy. That goes without saying... if they release them to just go on and hijack more ships, then that's not very productive. That's just stupid.
Fred