Concept of ODC..... it sucks

Why in the hell ODC’s in India ask for a stringent background check, why they allow people to work only in that ODC. This is rubbish philosophy whoever has started this, all crap. ODCs are making Indians real slave, tech slaves. Why can't these ODC's work collaboratively, meaning if there are people in 2 different cities, why cannot a project happen via phone and webx.