Yeah I get where you're coming from, but 'rewards' can often be worthless, e.g. I get texted a to collect "rewards" for topping up my phone but I don't even bother because they're crappy worthless rewards. At least with when the term "money" or "get paid" is used you know it has value. Maybe talking about it in terms of rewards is better I'm not sure, but I would think unless there's a legal reason preventing us from talking about Curecoins like they are money then calling it money would be more effective.
A big reason why I waited so long to get into Bitcoins (and I'm NOT the only person, as tons of others had the same issue) is because sites referred to it as mining for cash. This is a huge red flag for a scam, and made a lot of us avoid it. I had heard about it back in 2009, but because of the scam aspect I stayed away. I didn't get involved until the middle-late 2013 as a result.
You have to consider how the outside is going to interpret it. Most things that allow you to use your PC to passively earn cash are scams. We learned that long ago.
Fair enough. I'd go for your suggestion then: "Get rewarded for helping cure disease with your computer!"