Integrity is akin to personal accountability. It is not about the past or the future. It is about now. It is not about my impeccable integrity; a track record of having done what I said I would do when I said I would do it. And having done it in a remarkable fashion.
It is also not about my noble intentions. What I promise to do in the future driven by my guilt and procrastination.
It is about doing what I commit to do now, in a way that is completely incorruptible, period.