Integrity in this context means that what you see is what you get. In the immediate aftermath of Evan Solomon's dismissal by CBC, lots of people wanted to know why him, and not Amanda Lang or Peter Mansbridge? If there is an answer to this (and I'm not sure there is) then it lies in issues of transparency.
Kevin O'Leary thinks the fact that 85 rich people hold the same amount of wealth as the poorest 3.5 billion will motivate the impoverished to become the next Bill Gates. To say 85 people serve as "the motivation" everyone else needs to be the next Bill Gates is to admit that you've never spent time with anybody who makes less than $60,000 a year.
When questioned upon the divide between the progressive conservative values from his time in office to the conservative values of today, I heard the "has become more right-of-centre" one too many times, paired with his opinion that the party has maintained similar ideologies, thought processes and policies.