REDWOOD CITY — PG&E's top leadership consistently chose profits over safety so those executives should personally pay the possibly billion dollar tab for the deadly San Bruno blast, a lawsuit filed Monday says. The suit brought by a Pacific Gas & Electric shareholder in San Mateo County Superior Court seeks to hold executives and board members responsible for fines, legal fees and other costs of the 2010 blast that killed eight people. By the end of 2012, the utility reported it had run up $1.83 billion in costs related to the San Bruno rupture and its natural gas system. PG&E recently announced it had settled $565 million in lawsuits from victims of the blast. "Right now you have shareholders who are stuck with several hundred million dollars in bills. It could amount to billions of dollars," said attorney Frank Pitre, whose firm is representing Hind Bou-Salman, of Millbrae. "Let's get the individual officers and directors who are responsible for these flagrant decisions."