This has turned into a really interesting discussion, and I think that I have a few things that I can add.
In general, all staff do genuinely want to help you have a great vacation and there seem to be a lot of processes in place to incentivize that within NCL. With that said, they want to make sure a few people are exceptionally well taken care of. Everyone is valued, but they absolutely still maintain a VIP list. Some examples that I've seen personally are
Large shareholders (think 250,000+ shares)
Travel Agents with exceptionally high numbers
"Friend of X" where X is a C-level executive at NCL or NCLH
Top-ish tiers of the Latitudes program
I've seen nightly visits during dinner from the GM (like nearly every night he happened to check-in), dinner with the GM at a reserved table at a show, drinks sent to the table from senior officers with hilarious notes, gifts to the room, and more. In one amazing example, the GM found out a guest that he was taking care of had a champagne saber in the naughty/security room (very clearly labelled "KNIFE" despite being flat/dull, but understandable). He had the saber liberated, brought it to dinner with a bottle of Veuve, and sabered the bottle to celebrate with the guest. Picture taken, memories made, and a lifeline cruiser cemented.
Last thing - snapping picture of nametags has become something of a game for my wife and I. We always try to fill out a bunch of hero cards because, like others have said, we've learned that they're really important. Most staff members know what you're doing if they catch you, and they're generally quite happy about it IME.