Well, are we talking integrity or credibility? Obviously, USBC has a huge credibility issue with many members. For my part, I still believe that 99.9% of the men and women working there truly love the sport and want it to thrive. Sadly, they're fighting a war on way too many fronts. Plus, far too many members want the benefits of yesteryear and more even though the company is pulling in less and less revenue. Obviously, that won't really work.
If we're talking integrity, honor scores aren't the only element, but the scoring environment does play a big part. Now, there is nothing wrong with people shooting big numbers if they're earned through quality lane play and shot-making. Sadly, I think we both know that that isn't the case often enough these days. The fact that some houses can see 8-10 300s and 5-7 800s during a typical league set proves this point. I'm sure some of those bowlers are quite talented, but the videos that go up on facebook to show their shots usually illustrate just how much room there is in some of these centers. That's why USBC tried Sport Bowling/PBA Exp. and went to Red, White, and Blue. They're trying to put more-challenging patterns out there for people. Sadly, most bowlers just don't want them.