On charities...
Crooked ones: Clinton Family Foundation (enough said).
Why? Yes, there is a genuine need. Some are shamed of what they have and what others need that they are compelled to contribute. Much like indulgences.
Do they serve a purpose? Yes, some have actually helped those who through no fault of their own (read natural disaster) actually need something to get going again.
But... Charity begins at home. Usually in my pocket. It isn't tax deductible, but I do get to buy pizza for lunch today which is better then gruel that I might get elsewhere.
So, there are all types, and all sorts of reasons for charities. Choose yours wisely and think why you contribute. You will be enlightened.