You’re top in the Google results for your own company name, right? So why would you worry about all the stuff which comes underneath?
Well, so long as it’s just directory listings, that’s fine. But in the future, there might be something unpleasant. You never know. And getting rid of it will be difficult. So it’s a good idea to build up more quality sites mentioning you in advance. That way, if something nasty comes along, it’ll be harder for it to get on to the first page of results. 6 web properties you can use to protect your branded search results is a terrific article on Search Engine Land which gives you a whole series of ideas. Have a read.