"people shouldn't make money out of other peoples misery"
What a strange thing to say.
Guess you object to every medicine available then. All insurance companies, all debt agencies, all divorce lawyers, etc etc etc etc.
Stupid ting to say.
Good idea in principal spocky, but as said, it will be available for free.
Absolutely nothing wrong with the free market economy at all. If the next man sells it for �4 a litre even better. Competition is what makes the economy tick over.