Lack of pressure? Whenever they get any orders from the government they operate under (like US National Security Letters or Chinese, uh, whatever it is the Chinese government issues) - they just comply with them.
"Apple a force for good"? Yeah, tell that to the Foxconn employees, I'm sure they'll be thrilled. Or, again, to the people whose data is made available to the NSA.
"mend the growing conflict between advertisers and users" - much of advertising is (mostly) hostile to the users, aiming to achieve results which are detrimental to them. So there's not much mending to be done.