Yeah, this really isn't something to worry about.
The more likely issue (from your viewpoint as a website promotionalizer) is that "competitive industry" means "an ODP category can be comprehensive beyond the usefulness of any surfer WITHOUT listing all possible businesses."
Which means the category is likely to receive less than usual attention from editors, at the same time as it receives more than usual attention from legitimate submitters AND WAY MORE THAN USUAL attention from free-lancing mercenary doorway spammers.
So, the editor will say "I spent ten frustrating hours tracking down several hundred doorway spammers, and didn't find a single useful site to list -- call me a masochistic fool if I visit this category again this decade" while the legitimate submitters are imagining "not a single site was listed today, why is this category so neglected?"
The question as to "which view is correct" simply doesn't arise. There isn't a global answer, and anyone who thinks his is the global answer is simply a megalomaniac and a fascist. Each editor works out his own answer -- some less foolish, others more masochistic -- and the ODP ends up representing the sum of all their priorities. And each webmaster has the right to work out his own priority, on his own site, and on such other promotional sites as he makes arrangements with, so there is no need for the ODP to represent those priorities.