This to me is a traditional view which remains persistent until the very day.
My mother considered gambling as playing with money. She sternly reminded us not to gamble. When I was in college, there was a hot debate within the church whether or not to accept donations coming from dirty sources such as gambling. And in Islam, gambling (maysir) is haram (forbidden). [1]
I have a friend whose father would not serve the family food bought using gambling money.
And just a few years ago, our Education Secretary shunned billions of state-funds because they are coming from gambling. She didn't think it moral and proper to buy books and even build classrooms using the dirty gambling money. [2]
What are your thoughts on these? Do you agree with it, or you consider these as old-fashioned views?
Your secretary's actions are correct because it is impossible to use dirty money for education, such as wanting to wash clean but by using dirty water the results will not be there.