Online Health and Health Gadgets

Just a comment to the news about the Microsoft-Google interest in health, etc. First off, health is not just behaviour change, it's infrastructural change, too. And the trend I keep seeing in the medical profession is all about behaviour change, and "assisting" (forcing?) behaviour change. It would be much better health-wise to stop advertising junk food and alcohol, for example, but no, it is, as they say, up to >us< to resist the temptation, to watch our pulse and pressure every day and end up anorexic or overweight, stressed and even depressed. Second, do you trust your government? Or internet security? Maybe it's better for our health to keep our health info not piled up somewhere online... Finally, maybe it's a better use of funds to go out and help the homeless, unemployed and third-world-poor more rather than thinking up fancy gadgets for the rich, who statistically (in comparison) have very little health-wise to worry about?