No
1. BTC itself IS the investment
2. No matter how much BTC are put into circulation, the total amount of BTC is very limited, this limited supply nature will never change, so if the demand changes dramatically, the price will change dramatically
BTC is not only an investment. People do not use it only as a store of value but also as a way to pay for services and goods. It will always help BTC when it is used by more people for new purposes. (It will also help investors if there is more liquidity)
We were more talking about investments like depository receipts for equities in the real economy, that could be tradable within the bitcoin economy, rather than a currency peg like the hkdusd peg.
Do I understand correctly that these depository receipts would have to be issued by a central counterparty (like a Bitcoin exchange)?