In D&D sorcerers started in Dragonlance after the Chaos War left Krynn without magic. Palin Majere became the first sorcerer, having already been a wizard, when an aspect of Takhisis taught it to him. It wasn't innate, but it was spontaneous rather than vancian. There were also mystics, which were similar but divine rather than arcane, but when the sorcerer class was picked up for 3e they weren't included.
The main takeaway from sorcerers though isn't that they're somehow "special", it's that they don't have to memorize spells. Their magic is innate because they're related to a creature type that gets spell-like abilities. Same as plenty of other types of characters who have SLAs, like drow or furbolgs or numerous other creatures.
If anything, the association with wild magic probably works to their detriment socially. Wizards have arcane magic, but at least they know how it works. I'm not really sure where you're drawing a connection between the social stigma of unpredictable magic and being treated as "better" than anyone. I haven't seen lore that supports the idea.