I don't see why you have no choice. Google doesn't stop you from using all the other mechanisms that exist to promote your site. In fact, I'm not sure I found any of the sites I regularly visit through Google.
I don't think it holds up for commercial sites, but for news, hobbies, and blogs (which have been hit hardest by Google's vampire advertisement business) your statement is true for me!
1. User opens the browser, which defaults to the correct website the user is looking for.
2. User goes to Google instead, and searches for the company name. Clicks on the link for the company.
3. User navigates through the company website for the exact same page that the browser was set to open to by default.