By Jamie McGeever LONDON (Reuters) - Amid rising anger in Germany at Greece, a former German central banker showed some understanding on Thursday for the near- bankrupt country, saying Europe's monetary union was held together by values far more important than debt. Ernst Welteke, president of the Bundesbank from 1999-2004, said that while the election of the Syriza party in January derailed Greece's nascent economic recovery, the current crisis was not entirely Syriza's fault. "It's not fair to blame everything on the current Greek government.