I like to ask people this question:

If your fairy godmother appeared from a puff of smoke, waved her magic wand and announced: “Tomorrow you will win £40,000,000 on the lottery but there is one condition, you have to donate 40 hours per week to working in a job or a providing a service.”  What would you do?

If I won £40,000,000 I would continue to do what I am doing now for nothing.  Until then, I will continue to charge a little for my services!