I think Bono is a bad rock star as well, but for completely different reasons.
While Bono had long hair in the 80's, which is typical of rock stars, he sang and wrote Christian-inspired lyrics, discussed and participated in charities, and spoke about the injustices of the world.
When Bono put on the "rock star image" with ZOO TV, he still was political, discussing the U.S. election and the war in Sarajevo. He still participated in Green Peace events and openly donated to charities (proceeds from "One" went to AIDS research).
Now that Bono is a "seasoned veteran", he created DATA, to help relieve the debt and disease of Third World Nations.
None of this is very rock-star like. In fact, it's outrageous for a rock star to behave this way!! Where is the drug overdose? Where are the arrests? Where are the reports of infidelity or children out of wedlock? Where are the lawsuits? The drunken fights? Where are the tabloid pics of Bono parading with loose women (or men)? Where are the arrests? The drug convictions? You call Bono a rock star?! HA!
Bono is indeed a poor rock start - thank God!