Writing scientific articles in German - a waste of time?

It appears strange to us, but one hundred years ago the lingua franca of science was German. Although my former boss Kari Alitalo had warned me, I wrote in 2013 a two part review about lymphangiogenesis in German and I was shocked to see, that it had not been cited at all since. In order to make it available for a broader audience, we translated it now into English. Given the fact, that the average article gets about 4 citations altogether, we need only to be cited five times to be above average...