because he gets an answer either way?

As far as i know, google makes it a point to rate pages individually - so the content on those specific pages are what google wants to show because the search querry is specific to your page.

to help put your domain name appear first you can work on the internal links of your website by placing a link to your home page on every page [ not a problem if you have a navigation menu ] you can also build links to your home page with the related keywords as well as optimize on site for them as well.

with enough work you will get a double result on the serps with your homepage first and your sub page tabbed right underneath it.

or you would put a 301 redirect - but that would defy the purpose of having your page as number 1 in the serps anyways.