Actually you Don't,,,,Rules state Moderators shouldn't be editing their posts, Its in Da Rules. Moderating is not about power, just keeping the board Clean and on Topic. However as has been said to you, there is an appearance of impropriety when a principal is a moderator of his own company's board, so, show integrity, use the power properly.
Edit,
That is if you want people believe you are on the up and up..
It's an actions speak louder than words thing