Just curious. Seems like when great economic upheaval hits in the 20th century, there is a spike in suicide rates among categories of people with wealth to lose. Did the same thing happen in the ancient world?
Although I don't know if there has been any research done in that regard, I can point you to this previous answer of mine about some "upper-class" Romans active during the end of the empire. You'll see in that answer that although Odoacer wasn't very popular among the old roman aristocrats, he was only perceived as the latest bad ruler in a succession of bad rulers. In fact, for contemporaries, the ascension of Flavius Odoacer to the position of Rex Italia, or King of Italy, did not signal an end of the empire or an end to Roman-ness. While Odoacer's subsiquent usurpation by Theodoric would even lead to reforms that are described as "overwhelmingly Roman and Imperial in nature" in Jonathan J. Arnold's 2014 book "Theoderic and the Roman Imperial Restoration."