It reminds me of something my friend would often say. "I'm very passionate about your product and mission. Just that it comes at a price". Also, as the joker said it, if you are good at something don't do it for free.
It's absolutely perfect to be passionate about customers/product/whatever. However, if one is constantly distracted trying to making ends meet the cognitive bandwidth is going to be spent on it rather than chasing the passion.
Also, I'm getting paid.