I don't feel a lick of sadness for Boyega and Ridley.
They're both 24 years old, and have pocketed roughly $200-300K for this movie after whatever taxes they have to deal with. Not to mention that whatever percentage they're taking in from the box office returns is bound to be some nice change. Any additional deals they have with merchandising and promotional work is just adding to their dollars. If they're smart with their money, this will be nothing but good for them.
I don't know, maybe it's because I don't make that much money, but I know at 24 years old, I didn't make a fraction of what they did for a single movie. $200-$300K? I'd be over the moon! I expect they'll get more for the sequels, but this is a fantastic start for two relatively unknown, talented actors. I think they'll be fine, and I'm really happy for them. I hope this boosts their careers.