Do you need to be ultra-masculine to get ahead in finance? No, but it probably helps. : Following a study suggesting ageing hedge fund managers compete to achieve a “warrior physique” in order to further their careers, it has become apparent that the same dynamic may exist in investment banks. – Or at least among ex-senior bankers who now work for private equity funds. 58 year-old Alexander Dibelius, the former head of Goldman Sachs’ German operation has appeared in a video posted by his 34 year-old wife, Laila Maria Witt, on Instagram.