Yep, as great communicators go, this god fella is way down the list. Worse yet, he stutters, can't spell and he sends mixed messages.
If something isn't working and you keep doing it, that's a sign that one is insane. The first newbies, Adam and Eve, had a pretty good list of excuses when they "sinned", because they had no experience in the bad guy department. But this god of theirs gave no quarter, and poof, they were expelled, etc.
The second newbies, Noah and the gang, post-flood, already sinners, learned little from their cruise and went morally bonkers pretty darned quick. Of course, they were probably all suffering from PTSD and all the psychologists had been drowned. But hey, that's the price we humans pay when we fail our loving sky-dad.
So yea, you would think that after our language fiasco and our propensity to, you know, populate the planet, this JC guy showing up in one small region and whipping out a few quotes and miracles, could hardly be expected to make a big dent in the overall sin rate. Especially because movable type, telegraphs, newspapers, magazines, undersea cables, radio, television and the Internet were still in their infancy. Well, unborn. So the dependence on one messenger when the planet was somewhat bigger than he could rationally be expected to influence was a bit shortsighted. But at least being shortsighted is consistent with the god story, overall.
But yep, India, China, Europe, the various African cultures. North America, all could have used a visit from the kid or his siblings. In India, the brother of Jesus would have been put to death by being crushed by an elephant (a actual way of kiliing folks in the old days), so Indian christians would be wearing little Dumbo figures around their neck. In China he would have been hacked to bits by swordsmen, so swords. In Africa, he probably would have put out for the hyenas, so they would be wearing little dogs, while native Americans would have laughed him out of town, which would be problematic, silly little symbol-wise.
But yep, Omnipotent-Boy missed his chance back then to get the message out to a larger audience by being stingy with the virgins. Maybe he was shy, or still hung up on Mary and not inclined to secretly sleep with other virgins, or he found sex creepy, or something. In any case, it didn't work. And still doesn't. Which is crazy. But I already mentioned that.
Now days, it would be easy. Because of ad agencies and talent scouts and mass communications, he'd only need one kid again. I'm thinking Justin Beiber.