In the last decade, 2013 vs 2003, there have been sharp changes in public attitudes in the U.S. to extra-marital sex, same sex relationships, and babies outside marriage, all of which should caution us to distinguish ethics from culturally-changing morality. For Gallup survey data, see http://www.globalethics.org/newsline/2013/05/20/moral-issues-3/
Some observers concede that the Bangladesh government and local manufacturers have been lax on safety issues, but note the countervailing ethical conundrum: that boycotts or cutting of ties with the impoverished nation will only move the problem somewhere else and further drive Bangladesh into wrenching poverty. http://www.globalethics.org/newsline/2013/05/06/clothing-retailers/
Social media can impact behaviour of activists in the public area, sometimes, and may even influence corporations and governments. But one Swiss agency argues, Twittter may not be effective as an agent for change, especially when a a life is at stake. http://3blmedia.com/News/CSR/Will-Tweet-Save-Life-According-UNICEF-Sweden-Probably-Not