Of course it is useful.

Bank card-based one-cent charity projects. The way such public welfare projects generally operate is that for every amount of money spent by the cardholder, the corresponding bank will donate one cent to the designated public welfare organization or project.

For example, in 2012, China Everbright Bank Credit Card, in conjunction with the All-China Women's Federation and the China Women's Development Foundation, launched the "Every time you spend, I donate one point of love" campaign. China Everbright Bank launched public welfare activities for its credit card holders. The activity points out that every time a credit card holder makes a purchase at a POS machine (a transaction that can be counted as points), one penny will be donated to the "Mother's Water Cellar" public welfare project. Without increasing any burden on the cardholder, China Everbright Bank Bear the cost of the donation.