Why do you care about the product you're building?

I think this is applicable to most people on the platform. I'd love to hear what makes people tick; what's your why? For me it's that good feeling to know I'm making a meaningful social impact beyond wanting to make money or work for myself. However to contradict myself here, the other reason I'm pursuing entrepreneurship is because I've always been someone who builds things for the benefit of others. Not doing so would invalidate who I naturally am