Hackley 3

We were at a Salvation Army mass to support a family friend when the collection came around. The man to my left could only put three pennies into the collection basket, and the man on my right quietly slid in a neat stack of bills. However, the man with the bills had deep furrow lines on his forehead and was balding, but the man with three pennies to give had no wrinkles and a full head of hair even though they were about the same age. How is it that the wealthy man had more to worry about than the man who didn't know where his next meal or change of clothes was coming from?