Players should be counted equally regardless of ELO.
It isn't a very accurate indicator of individual skill anyway since it is a statistical measure drawn from the end results of matches and more importantly used as a direct balancing element in a community of limited size - higher ELO players are intentionally balanced with lower ELO players which would have a normalizing effect across a sufficiently large population. Many of your low ELO players are comparable to your higher ELO players, and they probably always will be.
Anyway, you didn't pick people for their ELO, did you? You picked them because you knew what they could or because your picks knew what they could do. Your personal judgment is paramount.