The idea is not for wild speculation to drive asset valuations to the moon but increased liquidity making the playing field more level in terms of opportunities to participate in the market.
This is a great point that the other person I was listening to I don't think really talked much about. What happens to the price of assets when more just the "select few" have an opportunity to invest.
It will be interesting to see what happens when security tokens start getting more and more popular, but I think what I learned the most was (and is good for any investing advice) keep a level head when they do come out.
To the extent the values of some underlying assets are speculative to begin with, there will no doubt be speculative pumps.