Consensus certainly will win regardless of this discussion here. The posted graphics are more for logo/trademark/brand recognition.
Ask any one of those horribly suffering under the overloaded use of $ whether they have heard of the Thai Baht. Ask them to point out where Thailand is. The continent at least.
How is that relevant? Why include ignoramuses in your argument against clarity? Most $-citizens couldn't point a Euro zone country on a map, either. And most people do assume, often incorrectly, that $ means FRN/USD.
Don't under estimate the confusion that peso sign '$' produces and baht '฿' potentially would. You are of course aware that a large fraction of all English and Spanish speaking nations use the peso sign? Because you can point all these nations out on a map perhaps you've traveled to some, such as Australia, New Zealand or most anywhere in the Americas between Canada and Antarctica, maybe you've been confused - particularly in tourist areas? Or perhaps on websites - some of which have localization, other's without, or poorly implemented?
I'm saying the average person in the target audience has no clue and won't mind.
Who is the target audience?