We are social creatures, might as well use that for the better. You ridicule someone for being poor or disabled, you go out for a day as that person to give you the proper perspective.
Same with terrorists. Let them know that the glory they're trying to achieve would be tainted and that their family would carry the burden of the shame for generations to come.
Ridicule hurts?
It's not the effect on the ridiculed that needs to be monitored that much. Sure some people end up with low self-esteem, or even physical harm, from bullying but many usually manage to move on.
What needs to be watched is the effect on those who ridicule. If they get used to it, it makes them less compassionate, less sympathetic with others. This is how you get CEOs stealing from their companies, bankers dragging down the country with their greed, etc. They just simply don't care about the effect of their actions on others.