well for sapience, you need stakers and node operators and coins for the database operations and coins for liquidity on the exchange... 8k is more than 1% say you get 50 nodes... thats 2/3 the current supply. the point of masternodes is to have enough that one person cant just own a few and start de-anonymizing the transactions.

*edit not sure if theres any studies on a reasonable number of nodes to represent a network well. a number thats low enough to incentivize participants to remain node runners, but high enough to make sure the nodes wont be a weak link in the system in any way.