NXT supply = ~1 Billion NXT
LTC supply = ~30 million LTC
Hardly a way to compare the two (via market caps).
If NXT's supply was 1 Trillion then there you go you win the market cap game. LOL.

How can a hero member say such a ridiculous thing?

Market cap doesn't care about how many units are in an asset or currency, market cap is market cap, if there are more units in one asset/currency than the other, all other factors being equal - each individual unit of that asset/currency is just cheaper, that's all. I mean, come on, it can't get any more stupid
