Talking about "making a Catholic presence known" in every city -- that's not economical or feasible in a Crisis/remnant/catacombs situation like we're in today.
Heck, with your argument here, it would be appropriate to build "Monuments" during this Crisis, as the SSPX is doing in St. Marys, KS and Dillwyn, VA with their new Seminary. Make ourselves known and talked about. Make the papers. Get on the news.
It makes more sense to take care of the Faithful in a practical way, and forget about "advertising". You can't do that in a time of Crisis; it's just not feasible. There are only so many priests, so many hours in a Sunday, so many Faithful, and so many dollars the Faithful can spare above their bare minimum living expenses. Each of those things is finite. So it's a zero-sum game. 100 million dollars spent on a "monument" is 100 million dollars that COULD have been spent elsewhere. The Faithful only produce so much "milk" per week, per month. The cow only produces so much milk per day. 100 cows only produce X amount. If you waste a bunch of milk, you will have less for other things.