Now! Didn't your mother ever tell you "life isn't fair."
But I'm really just suggesting that their fates were more intertwined with the Noldor then part of the Curse. Without the Noldor all of Beleriand but Doriath was in the process of being "Morgothized." If they chose to stay in Beleriand it would have to be in some way in cooperation with the houses of the Noldor and hence would have to be effected by Noldor success/failure.
And in a way the Noldor did have some positive effect. By battling Morgoth they essentially contained his influence to an area northeast of Middle-earth and outside of the Middle-earth of the Second and Third Ages, presumably making that area relatively more safe then it would have been.
But one could argue the net Noldor effect for dwarves was negative, despite great technilogical advances for them, learning from the Noldor.