One big question is also who will overwatch the guys who are watching? Or maybe it will be analyzed by some AI system. Who will be responsible if something bad happens with collected data?
Technologies like this lead to total control of population - physical, psychological and emotional.
Why would it be people that do the watching when AI can do that 10k times faster and cheaper?
And it's the people giving their consent for this who are ultimately responsible giving access to their data. Perhaps that wouldn't legally hold in some regions, but people have given their data for free for years now. LG is just joining to surveillance via smart TV format. Others will join into this. And frankly it's quite new thing that people can even give their consent for cookies for example. In the past companies didn't even care how much they spied on people. And they never asked if it was ok.