Does it matter what the Pope thinks about Biotech?

Obviously the Pope's opinion is wrong, especially his comments on artificical insemination for infertile couples (doesn't that go against God's command to "be fruitful and multiply" - of course people like Benedict don't really use logic). Additionally, the Pope is wrong and Andrew Sullivan right on gay marriage - if you're pro-marriage you allow gays to have civil union because it would provide the same social benefits to and from these couples that married people receive.

But does it even matter that he has an opinion? He is not the head of Christendom, only Catholicism (which recently has been seeking to reconcile with many of the protestant denominations). Aside from Catholics and christianists, do we even care?Most Europeans seem to ignore him. And what about the Chinese who have no cultural connection to the Abrahamic faiths (Judaism, Christianity and Islam)? It's unlikely they would respond to his opinion either.

Additionally, the entire protestant movement was based on the idea that the Catholic church was too dogmatic and didn't allow others to interpret Christianity as they saw fit. So there's really no reason for him to pay much attention to him since the Anglican Church, to which I belong, does not agree with him.