Government is an inextricable component of the marketplace in which these earnings occur. Money is an emergent effect of economic activity, not an a priori fixed quantity. So, yes, we do have more money because of government.

Furthermore, the idea that private charity is inherently more efficient than government is far from self-evident. A basic income policy, for example, could be a far more comprehensive and efficient way of directly addressing poverty than a patchwork of charities targeted specific symptoms of poverty. This is one reason that many pragmatic libertarians are actually favorable toward basic income.