This for me, big time. Love the rest of your list as well.
It was released December 1989 as a single, so it’s right at the end there. The only reason I really remember it is because coming out of the Reagan era, it kind of encapsulated the zeitgeist of the 80s for me – or at least one aspect of the 80s. So it burrowed itself into my mind for its lyrics, but also the instrumentation, production, everything about it is soooooooo late 80s.
Neon colors, 80s fashion, very early and clunky animation. I give you Money For Nothing.
https://www.youtube.com/watch?v=wTP2RUD_cL0
Bullet the Blue Sky
or maybe Industrial Disease
Not exactly definitive, but qu8ntessential.
I wonder how many people here just spent the last hour goofing off at work and listening to their favorite '80s songs on YouTube? 
‘Eye of the Tiger’ is a great 80s time capsule song. Hope Survivor got paid well for that song, because I’m pretty sure that was their only hit. I bet between record sales, Rocky royalties and merchandising they did ok. If they could only have gotten royalties from every time that song was played at a high school sports event, they’d all be billionaires.
No no no, the also had their second Rocky hit of course:
I can’t help tearing up whenever I hear this song: 
Crap, I’m doing it now! 
X Hungry Wolf
The man… the codpiece - Cameo: Word Up!
This is a candidate for one of the greatest songs of the eighties, but I think that’s deserved for its timelessness, not because it’s especially typical eighties.
Nah, they had a few others.
Oh yeah, Rocky IV with Dolph ‘I vill break you’ Lundgren. They were clearly working off a script outline when they wrote those lyrics.
I agree, but it has special meaning for me because I associate it with one of the lowest points of my life.
In a more serious note, I think one of the most 80st songs out there is Steve Winwood"s “Higher Love”, because you can compare it to a baseline of Stevie’s Blind Faith-era must, and use that to isolate the 80’s sound.
It’s also one of the purest examples of Dad Music ever recorded:
Whoa…I’m very familiar with the song, but never saw the video before. It had a lot of what you want in an 80s video-- 80s style dancing, a silly pantomined story line, a guy playing a keytar…but yeah, WTF was up with that red codpiece?
OK, I remember all those songs, but they had such a generic AOR sound they were just sort of audio wallpaper in the background.
I don’t know if it’s true but I heard that Queen wrote We Will Rock You/We are the Champions because they heard how much Gary Glitter made every time Rock and Roll Part 2 got played in sports stadiums. I don’t think Survivor is worried about where their next meal is coming from.
And did you know… because I did not… the detective in that video is LEVAR BURTON? 
More background on the video here, which is quite interesting:
I’d figure a guy who sings about Ronald Reagan and Menachem Begin before going on about Sally Ride and the Ayatollah in Iran and the Russians in Afghanistan could hit #1 in the ‘80s by mentioning a bunch of stuff: homeless vets! AIDS! Crack! Bernie Goetz! Hypodermics on the shores! China’s under martial law! Rock‘n’roller cola wars! I can’t take it anymore! We didn’t start the fire!