I think it's interesting that we've mitigated naturally occurring risks (such as disease) to such an extent that technology itself now poses risks of often similar magnitudes. Take preservatives: on the one hand keeping food fresh prevents various ills, but on the other hand continually ingesting chemical preservatives can cause disease itself such as cancer. The pushback against vaccines is kind of a manifestation of this... or perhaps the perception of risk as I think the science doesn't bear out the fears in this particular case. But in general, the idea that technology is always better seems to be increasingly challenged; often with a legitimate scientific basis.