My colleague Harris Dellas argues in swissinfo.ch that it is too easy to blame a tax dodging elite for the Greek malaise; tax evasion is much more prevalent, not least because a large share of the population is self employed, and institutionally ingrained. He doubts that the current government is better equipped to address the problem than earlier ones. And he fears that Grexit could turn Greece into a failed state.
Also, an open letter (in Greek and German, PDF) by Greek academics (mostly living abroad I presume). They doubt that the current Greek government actually helps to restore the country’s dignity as intended.