Also, the thinkers in the linked piece were obsessed with language, i.e. they had a specific thing to work on. It's hard to think of a modern example of that in philosophy, a fertile area where there's lots to be said. Theory of mind/consciousness, e.g. Chalmers, Parfit, etc, might be an example but I don't think they're on the level of Peter Strawson, Wittgenstein, or Russell. Time will tell.
Some older people are Galen Strawson (Peter's son), Daniel Dennet, Thomas Nagel and Chomsky. Kripke and Derek Parfit died recently. They're all men. Sorry. I swear I don't hate women!
It's by no means your fault. I think it's only reasonable to say that Philosophy is a discipline which develops powerful "schools" of thought and that they actively dismiss people outside their school unless they become too big to ignore. So many women would not have been encouraged to continue in Philosophy as their experience leads them into distinct channels of thought.
The book Metaphysical Animals covers this in some detail and gives an interesting account of the Anscombe Wittgenstein relationship also.
We produce orders of magnitude more, so everyone gets to pick their favorite ideology instead.
Society could certainly do more and we could certainly be more engaged with one another, and poverty certainly does exist, but so many fail to realize that even the poor live better than the kings of old.
I suppose if I'm allowed to name someone who only died recently, I suspect that Derek Parfit will be remembered as someone who was simply brilliant. His teletransportation problem will remain a classic thought experiment and he'll be remembered for his work on population ethics, though it's less clear to me what the future will make of his main project: working out a unified moral theory.
On the other hand, I can name some^ names as to which philosophers are most likely to be seen as influential:
Currently, it's looking like Peter Singer, Toby Ord and Will MacAskill will all have had significant influence through the Effective Altruism movement. Similarly, Nick Bostrom has had significant influence through his book Superintelligence.
Dan Dennet had significant influence by being one of the "Four Horsemen" of New Atheism. His direct influence peaked a long time ago, but it remains to be seen how responsible he will ultimately be seen for the West's decline in religion (or whether this will just be seen as as trend that was happening anyway).
^ Possibly biased
Look at the guest list here https://podcasts.apple.com/jp/podcast/philosophy-bites/id257...
And here https://podcasts.apple.com/jp/podcast/philosophy-for-our-tim...
And here
https://podcasts.apple.com/jp/podcast/philosophers-zone/id13...
Philosophy has kind of fallen out of popular perceptions. Or worse, actively attacked as useless.
It isn't like few decades ago where Camus and Sartre were commonly known, even popular, and people would sit around having coffee and talking about interesting subjects.
It would be easy to grow up today and not know any philosophers.
Robert Brandom at Pittsburgh is a bit of a grand old man of philosophy and still publishing - works in in philosophy of language and philosophy of logic as well as Hegel scholarship, and his "inferentialist" approach to linguistic meaning has been at least cited by people working in proof-theoretic semantics and linguistics. Martha Nussbaum in political philosophy and ethics and David Chalmers in philosophy of mind/cognitive science also come to mind. But again I'm not sure that Chalmers is taken seriously outside of philosophers' circles.
If you're interested, his book "Reasons and Persons" is central and quite accessible. Part 1 is boring to some, but can safely be skipped in that case.
https://www.philosophy.ox.ac.uk/people/peter-millican
Nick Bostrum is an occasional favorite at NH because of his early thoughts about paperclip maximizers, superintelligence and simulation.
https://www.ox.ac.uk/news-and-events/find-an-expert/professo...
Dan Dennett, as one? Chalmers?
RMS
stallman.org - personal website, contains a lot of opinion, but I absolutely respect this man in all what he says.
emacs.org (redirects to https://www.gnu.org/software/emacs/) - his non-philosophical work, one of two mainstream text editors for *nix.