The people associated with fraud usually lead lifestyles that are out of proportion to their legal income, although interestingly, they are often reluctant to go on holiday. Senior officers who are engaged in fraud will aggressively reject any scrutiny because they are making money for the company and its shareholders.
In fact, many corporate leaders who are secretly cooking the books are hailed as corporate heroes - right up to the moment when it all comes crashing down. Another reminder that if something looks too good to be true, it probably is.