Have people considered that perhaps the author enjoys the process and it's a win-win given they learn new stuff, get to teach that stuff, and make a little cash

Have people considered that perhaps the author enjoys the process and it's a win-win given they learn new stuff, get to teach that stuff, and make a little cash on the side too? It's hardly out of bounds to think the primary objective was to make money. when the headline is "How I earned $x...".