A couple thoughts come to mind when I try to think of this rationally;
When those hunters of years past wounded an elephant, or if they wounded a lot of them... and wrote books of their great exploits.. Do you think those wounding's would have made it into print?
It is likely Bell your are primarily referring to or thinking of, he was known as a great shot, and a man who investigated and new exactly how and where to shoot an elephant with a small bore gun to kill it. And from all reports he was very brash or brave or both when it came to getting close and in place to take his shot.
Today poachers kill elephants with 7.62 x 39's! LOTS of bullets, lots of cruelty. They will shoot into the knees to bring the animals down, then blast away on full auto to "drill" into the had to the brain......
Hunters on the other hand use large bore capable calibers with high quality bullets and for the mot part bring the animals down cleanly with one shot to the brain.
If he non hunting community looked into this, I would hope the could see the difference...
It is fun and exciting to read of the exploits and feats with those small calibers.... But I hope to hell we never see it happen again!
This same line of thought is also a good reason to avoid the heart lung shot if possible. Especially if the animal is in an area where it may run to a spot you do not want it to be when it dies...... My PH was VERY cognizant of this! For safety of us, the good of the animal, the good of the herd, and to avoid potential PR issues.