I think this would be an excellent idea.
Current the HNY token is N1 token in xDAI-Network, and that is arguably not great because it’s an unknown token and people would very much prefer to have ETH available to covert to a ‘safe asset’ whenever they want.
Similarly, adding MKR would give a very nice exposure to MakerDAO.
Generally speaking, even if I am not from a low income country, I am personally enjoying using xDai a lot: it’s fast, the bridges work fine, and the fact of spending only 0.0001 DAI for tx fees is just very pleasant.
In my very humble opinion, xDAI-Network is going to grow over the next few months.