Without ZEC going up, there is no other “marketing” that will have a substantial impact on Zcash adoption/ growth/ brand perception/ treasury funding.
Wallets being damaged is a second thought, keep in mind that 90% of all Zcashers own their coins in transparent mode on a huge centralized exchange. Those Zcashers are obviously hurting and giving up, take a look at the ZEC-USD for evidence of the pain.
Without a strong ZEC - other marketing gambles are non-viable.