If you got nofollow link from most relevant category and place at that time it is beneficial as it increase related traffic as well as it is also helpful to increase relevancy of your website and relevancy plays major role in SEO.
The no-follow rule is a blessing to article marketers. It prevents article spammers from improving search engine rank unfairly. The link will still be on your page, and can still be clicked by people reading your page however, so there is still some benefit in having these links.
Its better not to waste time on such sites which offer no follow links because it doesn't provide much fruit in ranking as well as in building page rank of a website.
so what should we have to do living in no follow place is there any benefit we can get neglecting traffic gain? I think there would be some benefit in submitting links at no follow sites. .
The no follow and do follow is for Google only, other search engine follow every links while Google follows only do follow links.
I think getting nofollow links from relevant sites is good. A mixture of nofollow and dofollow links will help to make your way of building links more natural to search engines.
A link is a link. Whatever attributes you put within the HTML link tag, it's still a link. It can still drive traffic to your site. Although you won't get the link juice from those with the nofollow attribute, what matters most here is that you're giving the people what they want when they search for it.
Mostly the whole priority was given to dofollow links instead of nofollow links just because nofollow links doesn't allow search engine crawler to visit your website through your keyword or links but dofollow backlinks are brings more traffic towards the website.