this is a logical fallacy. Other more important issues don't make this issue less important. This is a hackers website not a health care/doctors website.
The topic is a visa proposal which proposes to "hack our economy". Although I don't completely agree with likhd2, bringing up health care is of relevance if fixing certain of those issues would create more jobs and startups than this visa proposal.
1. More important issues do make other issues make other issues less important after the have been taken into consideration by definition of word "more" and less.
After more important issues are taken care of - well yes, the do not alter the priority of other problems.
2."Hackers" are people, and the topic of this talk is not about computers either; if you are about to start political campaign you can not tal about RoR, hadoop, clouds or whatever else technological; you gotta take into account, real old like humanity issues - healthcre, fraud, flee of capital; externalities of robbing countries of enterpreneurs.