No CEO dares say it, yet it must be said: The shaming is over. The 5 1/2-year humiliation of American business following the tech bubble's burst and the Lay-Skilling-Fastow-Ebbers-Kozlowski-Scrushy perp walks that will forever define an era has run its course. After the pounding and the ridicule, penance has finally been done. No longer despised by the public, increasingly speaking up and taking stands, beloved again by investors, chastened and much changed--business is back.