UnitedHealth Group Inc. Chairman William McGuire sparked outrage among some stockholders over his $1.8 billion in potential stock-option gains. Turns out, the board of directors that granted those options got a share of the wealth, too. UnitedHealth's 10 non-executive directors held $230 million in stock as of March 21, according to the health insurer's most recent proxy…"You have to ask yourself, are these people paying attention to the mission of the corporation, or are they being distracted by the amount they're getting themselves?" says Minnesota Attorney General Mike Hatch, who is investigating Minnetonka-based UnitedHealth along with federal authorities…A board committee is reviewing 45,000 separate option grants made to 15,000 people over 13 years, the company said in a statement.