As responsibility for society and the economy is firmly anchored in the statutes of the Sparkassen, why not encourage people to make another kind of "deposit", one for the city, for what they like and love, why not let people to chose their own state of mind and culture.
! IMPORTANT ! - some pictures used for presentation were taken from the world wide web, i do not own the rights of them. used it to exemplify my idea
slide 3 photo backgraound used from Victor Pelaez Torres | Dreamstime.com