It's becoming mandatory.
Every time a person or company engages in some kind of charity, specially involving money, it uses the same boring jargon of how he, she or it is "giving back to society".
The problem here, of course, is not engaging in charity.
The problem is the implicit thought behind "giving back to society", as if the money you earned was not earned by giving to society. In other words, you're just giving to society again, in the form of the money you earned by providing value to society in the past. You're not giving back, you're giving again, and, look, it's even more generous!
Stop feeling guilty for your contributions to society in the form of time, products and services!