At some point if you want to be money you have to attract money and people. Yes, development is important in software, however in these systems the social aspect is probably at least as important if not more so. Development in this case is only merging Bitcoin stuff and porting wallet software right? It's not like there is anything new being done with GRS, and I'm not sure how much value there is in having yet another Litecoin with the only differentiating feature being an even more front-loaded emission schedule. You can dismiss marketcap as irrelevant, but when you're hanging out right next to Dentacoin on the charts it seems like the market has dismissed you as well.
With your metric Litecoin has much value, difference in opinion. Porting wallets is a big undertaking that big coins like Litecoin could only dream of.
There is not even 1 altcoin that has ported as much as we did (including the groestl hash to all programming languages).
Market is not coinmarketcap, however we will see if coinmarketcap/market will proof you wrong this/next year.