1/ I agree with you on the premise that it is somehow inevitable but it is a lawless arena today.
2/ Also the single person does end up having more capability but also protection from them is also more possible.
But the problem with it is that in its current form surveillance is secret and the decision of action based on the surveillance is done in secret. There is an exclusion of democracy in any country when it comes to surveillance. Laws governing response to surveilled information are non-existent. This means we don't as a people have known effective means of using surveillance nor can we come to know unwanted side effects. Also citizens of a democracy are treated as unqualified individuals to know about surveillance. There used to be a caste system in the past of people who were worthy and those who are not. Kingdoms, dictatorships and communist states are the classical examples. Today the caste system is whether you belong to the surveillance community or not. Yes we need it but we need it to be governed by rules. Surveillance is a product of wanting to have an upper hand on the international landscape however we are discovering that it is slipping into domestic situations like the parallel construction cases exposed by Snowden. So while surveillance is inevitable and necessary it really is the wild wild west of government.