Ha! Growing up mom made cornbread all the time, it never had sugar as we were from TX. I thought that was just the way cornbread was made. I learned to make it from her as I grew up (I love to cook) and DW (I married young) learned from her as well. She did say it didn't taste like her mom made because her mom's was sweet (from PA).
It was quite some time before I ate some of her mom's cornbread, and like above, it tasted more like "cake" to me than cornbread. Now, after being married almost 55 years, they are 2 separate concoctions used for different things. When we go to FL I make cornbread from scratch as everything there (Jiffy IIRC) is sweet. But, we like sweet depending on what I'm going to make. So yeah, the cornbread world have differing "concoctions". I would in no way make my jalapeno cornbread with sweet cornbread.