American Gangster: Wilford Brimley

Remember those commercials for Quaker Oats where Wilford Brimley would tell viewers "it's the right thing to do and the tasty way to do it"? I always thought he sounded a little too terse for a commercial about breakfast. Didn't you just wake up? What could have happened to make him so crotchety that early?
Topping that, he came back to promote Liberty Medical, a company that sells testing supplies for diabetes. He advises (or rather commands...I don't even have it, but was pretty close to ordering some supplies purely based on intimidation) viewers with diabetes to "check your blood sugar and check it often". He also single-handedly in the same commercials changed the pronunciation of diabetes from "die-a-bee-teez" to "die-uh-bee-tuss". If Liberty is a company that specializes in diabetes testing, don't you think someone on the set would be learned enough to have tried to correct Brimley in that pronunciation? My guess is that someone tried and was swiftly smacked across the mouth. And the most gangster part of it all is that the commercial still ran and is still on the air, regardless of the mispronunciation. Priceless...