I do see a lot of potential in 23andMe (though I loathe the name—never put a number in your name! numbers are incredibly overloaded—millions of times less combinatorics; and they become outdated almost immediately—23 is a largely meaningless number).
But 23AndMe at least has built a large number of paying users. If they look at where medicine could be in 10-20 years, and have the courage, they've got a better shot than nearly anyone of leading the way. Someone could be a $1T universal health care company.
The health privacy issues I think are a red herring. Proper medical research entails generating strongly typed data that you can synthesize infinite records with one click. An individual's personal health data should be of little value, and if it's not, then we've got deeper fundamental problems with our system (which we do, but has nothing to do with 23andme)