Stop trying to pull on the non existent heartstrings of many men, because you're not going to get too far.
A Stanford University study documents an empathy gap with important implications for how fundraisers should make their case to men. Men will be more likely to donate to charitable organizations if they are told what's in it for them.
On the other hand, women are more likely to give to charity, especially poor people. There are a variety of ways to explain these differences, besides the obvious differences in empathy.
Women might feel that people are poor because of their bad luck or due to societal failures. Men may be more inclined to blame a lack of skills or the will to succeed.