How important is title in back link article?

Hi, I belong to a link service. I write articles, and submit them to this service, and site owners looking for content will choose them to be posted to their sites with my links embedded in them. My question is that, quite often the keyword or links in the article are not what another site owner may want in a title on his site, so I change it a little.

An example is if I am doing an article about web hosting, but my site is cheap web site hosting, I will work links into the site that say cheap web site hosting, but I will make the title something like, How To Find The Best Web Hosting.

Is this hurting the value I am getting from the back links, by not having the title of the article match the links. I know this is important when the article is on my own site, but I am not sure of the importance, when it is on another person's site.

This is a link service so the website owners can't change anything with the article.

Thanks Glenn