Great question. It's probably not going to hurt, but getting links to your Google+Local page isn't really going to help, either. Your best bet would be to win those links for your site.
Totally agree with you Phil that building (or attracting ) quality links to your website should be the primary goal. Theoretically though, wouldn't it also be possible to rank a Google+ local page in the organic search by building links to it. That way a business could potentially grab another page 1 spot, if that's what they're after.