I think there are some plants that aren't beneficial. They're called invasives. But some (permaculturists) even claim those are just pioneers and a lot of them are nitrogen fixers. Examples I can think of in my yard are acacia and Asian wisteria.
Back to roses. I remember many years ago I visited the mission at San Juan Capistrano. In the courtyard was an olive grove, and at the outer edges of the courtyard, the nuns had planted old fashioned roses, and under the roses were onions and lettuces. I can still remember the scent of the olives on a hot summer day.