D7 gives online existence to your website through online Promotion, Awareness & e-branding

If you’re goal is to reach EVERYONE on the web, you will be disappointed.
This is not TV. Internet users have specific needs. If your goal is to reach people who are interested in what you have to offer, that is more realistic, the Internet is a collection of communities. International & local communities, If you promote your site as a service to the community of users that are interested in what you are doing, you have a better chance.

Because websites are relatively inexpensive,
you can target your audience to a very narrow market and still benefit.
For instance,
your site can be designed just to serve your existing customers or to attract more customers, target local audience or international audience, etc..