In the context of Stallman's views, I mean. FOSS is important, but if writing a successful proprietary program keeps someone out of debt then it is a necessary

In the context of Stallman's views, I mean. FOSS is important, but if writing a successful proprietary program keeps someone out of debt then it is a necessary evil. There are many other variables that would have to apply, I know. But for the sake of argument it is just focusing on the conventional problem of (paying for) everyday living.