Southern Scadrians and Harmony

[ScarletSabre]

So, with the revelation from one of the new signings here that....

Spoiler

ETTMETAL IS HARMONIUM. It's chemically reactive, not nuclear. (Electrons, not protons.)

My mind has instantly raced, and something clicked, to let me come up with this quick little mini-theory about something we've been curious about for a while. Why Harmony hasn't done more to help the Southern Scadrians? He created the Basin for the North, but essentially left the South to freeze, and aside from - BOM spoilers

Spoiler

Seemingly sending Kelsier to help them

has seemed to not do much for them in terms of development, from what we've seen.

I could get into all kinds of rambling about Ruin and Preservation, that he's preserving the North while letting the South fall to ruin, him protecting Scadrial from the Red Haze, etc, but my current thought and random speculation is this.

Harmony has been unable to actively help or influence the Southern Scadrians as much as the Nothern ones.... because he's been in the process of Investing his power in the South.

The Well of Ascension was in the North, and we've seen that the Pits of Hathsin don't have any Atium, and therefore Ruin's Investiture/power in them. We've had WOBs before about the existence of Harmonium and Harmony's Shardpool, and I believe that if Sazed was actively trying to imbue his power into the South, or at least more south than the North to balance the distribution of it, he would be unable to overtly take action aside from sending the help I mentioned above.

This would explain the abundance of Ettmetal, Harmonium, in the South, and why there's none of it in the North, because Harmony was already Connected/Invested there and helped them as much as he could with the Basin and books, and then moved his power to begin Investing/Connecting with the South to be able to help them. This naturally creates his Godmetal there.

Thoughts? This is just a quick, off the top of my head connecting of dots so far.