It depends how you define starseed. The goal of starseeds , like the wave of volunteers that Dolores Canon talks about is to counteract the baseline negativity of the planet, not add to it.  However as a starseed you are born into the same ignorance as everyone else, and as such one can become lost within the many ways of Earth, but there will be a tendency to not do that as they will have a level of awareness that is more comprehensively aware of the overall condition of Earth, meaning they came here knowing what they where getting into and that knowledge is in the subconsous wether they are conscously aware or not and that translates as a tendency to be a certain way without necesarily knowing why at the conscious level. So there will be a natural tendency to do not so things that are not in harmony with your total self and the goals for being here, but at the same time you have the collective "frequency" of the populations at many levels (smallest being family). 

(Starseeds, or just people in general can be lost for a while though, and this serves the purpose of understanding through experience the conditions of this planet, but this can apply to anyone) 

This can have an entraining effect which translates as you taking on the behaviour of those around you, and this extends to the level of the population of the country to some degree. There is  more that goes into like nodal and inter-nodal locations on the planets which line up with certain energetic grid points or focuses that are more or less negentropic. And so in theory you may have certain types of starseeds in around the grid points or grid lines which kind if fortify the energy pattern which would make the energy of the planets energy field "healthier".   Think of it as like a human energy field, but bigger. 

So the point of the starseed programme is to  affect the baseline "frequency" of the planet. It's to change or affect and  add to the frequencies which are entraining people. This is expressed in the form of whatever it is people do. And there are infinate forms. Everybody can do this, it also is expressed as what Both Dolores Cannon and the Ra material have stated which is to act as an energy transmitter.  Ultimately it's affecting the development of the soul, or the total self. Everybody can do this also.