No people put morality over "success of other". Most of the time when talking about something convenient, or you own business, people manage to bend their own morality with "rationalisation" or "carefully avoiding looking at the fact".

Our world has slaves.

Ultimately you can also generalize this. Specifically, there is a tug of war between the company and its users. By and large, the company interests may be served by exploiting as much user data as possible. The user usually sees this a bad. They want the company to be useful but without having to give up and privacy (or other negatives.) The user perspective only impacts the companies interests when enough negatives accumulate to create a negative reputation that stifles growth, but almost all users, ceteris paribus, would prefer the company to be less invasive. So these outrage-fests directed at LinkedIn, Facebook, Path, etc. serve to push back against companies and create the demarcation line between acceptable and unacceptable tactics.