Broadband itself, as in access to the internet is a utility. Same as water, phone, electricity, gas. The "high speed" argument is irrelevant since it is totally subjective.
Need is not an issue. Humans don't "need" any of the utilities we have. Even the word utility has nothing to do with need. Look it up.
Access to public information is a right. But as long as there are other ways to get to it (a library) you can't lump internet access in there.
From a business stand point. There is almost no way that a business that doesn't have broadband can say they are on the same ground as one that does have it. Even if you're talking about a Pizza shop or a Shoe shine stand. Fast access to information, as well as the services available are a complete necessity for any business.
If at first you don't succeed...bug them till you get what you want.