Mad Magazine's "Melvin and Jenkins". Jenkins, a nerdy-looking chap, is polite and intelligent and always tries to do his best; Melvin, on the other hand, is a gangasta wannabe hoodlum who delights in petty mischief.
All That had sketches of “Life With Peter & Flem”.
A strange 50's-style fantasy sequence in That 70s Show had "Doofus and Diligent" (Kelso and Eric, respectively) working at a fast food restaurant. The segment was an Imagine Spot by Jackie’s dad, using minimal character exaggeration, to show why Eric got the job and Kelso didn’t. Jackie's dad intentionally (and rightly) framed her boyfriend Kelso as "Doofus". Eric, with the threat of his dad's foot up his ass, was of course "Diligent".
The original Mickey Mouse Club had a series of shorts hosted by Jiminy Cricket about safety. Each episode ended with a contest between "You" and "a common, ordinary fool". "You" follows all safety precautions and wins, while the fool got nothing but Amusing Injuries.
In Home Improvement, Tim Taylor, on his Tool Time show, is considered to do this deliberately. He has gotten a few rewards for what they consider deliberately doing the wrong thing in contrast to his assistant Al, and showing what happens. Subverted on the Show Within a Show as they're both talented, but Tim is really just accident prone.
The website The Art Of Manliness has an adult variation of Goofus and Gallant (called Dim and Dash) in order to display proper male etiquette.
The Randomverse's original videos used the same mechanic as the “I’m A Mac / I’m A PC” commercials, as “I’m A Marvel / I’m A DC to show the right (later Marvel films, Batman) and wrong (earlier Marvel films, everything else DC) way to make a film series around similar concepts. As ItsJustSomeRandomGuy is a fan of both companies, the jabs were fairly lighthearted. Except for the stupidity that was the kryptonite mountain.
A parody of this is done in the flash "Yes and No" about driving habits, the red car being the "wrong" one and the green car being the "right" one. Unlike most examples, the "right" option involves bad things and inconveniences happening to ther person.
Animaniacs had shorts of "Good Idea, Bad Idea", although one character demonstrates both ideas. Good Ideas are usually simple, practical, unimportant everyday things, while Bad Ideas are hilariously useless or dangerous to the user.