Kein Widerspruch: Open Access und Vergütung durch die VG Wort – iRights.info

From Google's English:  "For open access to prevail, the publishing model needs to be widely accepted in science. There is a persistent prejudice among German researchers that publishing under free licenses such as Creative Commons Attribution (CC BY) - just like publishing research results without a paywall, a key requirement for open access - would mean economic disadvantages for the authors. This fear is largely unfounded. Those who publish under free licenses do not have to forego their right to remuneration....

Scientists can earn money from the copyright of their publications in two ways: through licensing income and through remuneration claims. For the majority of researchers, direct licensing income is of little importance. The predominant form of publication in science is not the book, but the article in scientific journals. Scientific publishers, whose profit margins sometimes even exceed those of Google , regularly have all rights to the articles transferred to them without researchers sharing in the licensing income. Licensing income is therefore only an essential mainstay for those scientists who have written a textbook, for example, that students buy at a flat rate every semester...."