I've found myself using the whip more and more. I'm currently playing a huge deity map and I have reached new depths of cruelty

I started by putting my second city beside a wheat to rush it, then discovered cattle beyond it. So the third city went there. By the time I was done adding to the chain, I had 7 cities in a line from my capital, each with an irrigated wheat or cattle! Just about the time all 7 cities were up to speed (granary, temple, barracks) I found horses and linked them in. They've been pumping out Horsemen ever since. 7 * 4 food, 2.8 new citizens/turn -> 2.8 Horsemen/turn.
Around 10AD I took over a region owned by a rival where I saw another 7 cattle. I quickly assembled an new slave camp farm around them. They're up to speed now (around 300AD.) I have Chivalry at this point so the two slave camps are pumping out Pikemen. (They cost 1 citizen to rush vs. 2 for a Knight, and later on they'll upgrade along the path to Mech Infantry.) 5.6 Pikemen/turn. After 10 to 20 turns of this (once I've replaced all garrisoned Knights with Pikemen defenders) I'll flip the slave camps to Knights, getting 2.8 Knights/turn out of the camps.
Sometimes (just a bit in this game so far) I also rush galleys, to build up a fleet which can later be upgraded.
Immediately after capturing a rival's city and quelling resistance, I rush an improvement in the captured city. I rush the largest cultural improvement possible (e.g. Colosseum if it was a large city with remaining population 6 or higher.) I want to get the population down to 1 or 2 asap, to reduce the chance of a cultural flip. Later, after the city's borders grow, the improvement can be sold to eliminate the maintenance cost.
I don't know if this qualifies as "I'm the King slave-driver of them all". I certainly seem to at least have a bad case of it

I've gotten worse as I play the game at harder levels...
It does feel a bit like an exploit. But, when I see 15 other Civs each needing only 60% of the food to grow, 60% of the shields to build, 60% of the science to research, and they are all trading the techs they gain furiously, I'll use any edge I can get!!! (It doesn't feel so much like an exploit after all, the whip seems to be addictive.)