We know that some people without access to medical care will die. You're saying it's okay to gamble those people's lives on the chance that future lives might be saved. Obviously a balance between spending on research and health care must be struck so this isn't a black and white issue but you would need to put forth a pretty convincing argument that a lack of net neutrality would prevent us from saving billions for me to buy that.
For the record, I do not support single issue voting at all. There is no issue that outweighs the others.
I also think the idea that someone who was going to vote based on a single issue would choose something as trivial as net neutrality is particularly ridiculous when there are so many other issues where life hangs in the balance.