What's wrong with volunteer travel?

This TED talk is about what's wrong with volunteer travel, Daniela, a girl that has been living in Cambodia for six years. Says that she started her work in Cambodia as a volunteer. With her group they wanted to create a school and educate the poor children, but after a time working on that project, they realized that they weren't doing the things right.

They realized that before creating anything they had to learn like it was the life in the country, and then discover how they could really help the children. And with this she means that before helping we have to learn.

She also says that there are a lot of fake orphanages that collect money from unknowing tourists coming from all over the world, money from people volunteering in these orphanages. 

Says that by volunteering we are only giving our sympathy and by learning we have empathy with the people of that country. 

And the issue is, that the big players on the "voluntourism-market" are not interessted in long-term-development-results,solutions etc. All they care about is how to maxamise their profit.