I sometimes begin to think the same way, and then I remember about these:

http://futurity.org/wp-content/uploads/2009/11/oscar-pistori...

http://static.ddmcdn.com/gif/artificial-heart-abiocor-hand.j...

https://www.23andme.com/

http://www.guadalupemed.com/images/xray.jpg

http://www.eyeclinicpc.com/lasik/lasik%20steps1.jpg

http://www.piersondental.com/Portals/22078/images/rootcanal%...

http://www.bismarckfamilydental.com/dental-implants-bismarck...

http://www.nidcd.nih.gov/staticresources/health/images/ear_c...

http://emedtravel.files.wordpress.com/2012/04/brain-mri-1.jp...

And that's just off the top of my head. I think modern medicine has advanced a lot more than we give it credit for. I know a lot of hackers tend to compare other industries to the tech field, and expect everything to advance at a rate like Moore's law, but that just isn't feasible in most fields.