Heaven helps those who help themselves. I wonder how much we help ourselves in making the rain fall, the sun shine, night fall and sun rise, air we breath and much more areas where we just consume without producing.
Proverbs don't always contain universal truths. They may also contain partial or impossible truths. But this is not relevant. What matters is that they are true or valid when used in context. They merely offer options to recurring situations, hence the existence of contradcitory proverbs. The notion of truth is often an illusion created by the generic meaning of proverbs and their law-like structure, which are necessary for proverbial usage. Among the most controversial proverbs (out of context), one may cite "Money can't buy happiness".