Cigarette addiction kills people
But it makes me lots of money
It ruins their health
But it makes me lots of money
...
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The 2nd last line is a bit confusing. What if it said 'Why am I allowed to promote and sell such a disgusting product? ' I think that might make more sense. Just my sense, as you have swapped 1st and 2nd person suddenty and then swap back on the last line.
wats more important? Ur health or money? think about it