Those novels are natural extrapolations, deductions given the way our economy and society are organized. They are warnings, but given the incentives of market capitalism, they are in many ways inevitable. Even if Facebook et al decided not to do such things on moral grounds, it wouldn't be long before someone else appeared to fill the void.
Very few things are "inevitable", and I don't think that the things you cite are an exception. Regulation exists for a reason, and we have many examples of going from worse conditions to better ones e.g. from the 12-hour workdays to 8-hour workdays and banning child labor. Don't give up - these are things that can be legislated around.
