They got into math for the love for mathematics but if they couldn't make a living from it (tenure) then they would have done something else just like everybody else who is not a starving artist. So, no, they won't celebrate it and neither would you if you were honest. (note also that starving has a short time limit before you die so "if all of it leads to some form of superabundance" won't work in that circumstance)
Someone tell the administration to restart funding mathematicians then [1] -- because the exact opposite of "more mathematicians" is happening right now, both at the post/graduate level [2], as well as the undergraduate level (for much longer) [3].
[1] https://www.ams.org/news?news_id=7694
[2] https://www.ams.org/learning-careers/data/impact-report
[3] https://www.ams.org/journals/notices/202310/noti2806/noti280...