Near-immortality compared to human lifetimes is a huge, huge difference. Society would be nearly unrecognizable in several important ways
I am working on a post-apocalyptic Shadowrun setting, 100yrs later. Each city has like 3 humans who were alive to remember "the event", then a plethora of dwarves and elves who dominate the discussions.
It highlighted some dangerous aspects. They were there, no one else was. Some of the long-lived may have spent decades writing revisionist history and/or suppressing other histories by buying copyrights and then either releasing literal revisions or forcing them to stay out of print. Others may have created pop culture alternatives that pollute the narrative.
I mean, how many people believe Loki is Thor's brother or the god of illusions due to comic books?
Politically, imagine Richard Nixon laying low for 50+ years then spending 30 years slowly getting back into the public view when only other long-lived species can remember his first go-round.
Financially, any member of a long lived race who has some self control, reasonable brains and no social penalties should be quite well off after a century of adult life. I mean, there is no reason they shouldn't reach "master artisan" in more than one field, ensuring they are always at least upper middle class income, and then be able to save their odd silver pieces to buy land, property or occasionally a higher risk/reward venture like a ship or caravan.
Culturally, the other two have major impacts. Imagine judges and politicians holding office for centuries (even if they alternate decades) influencing law. Thr majority of the patrons of the arts will be those well-heeled, long-lives, who will pick artists that are aligned with long-lived values (or will do as told), resulting in a steady stream of long-lived-centric art, plays, and stories.
In worlds with personal magical Power, the elder races will fill out the upper ranks of achievement. I mean, just the errant war or invasion every 60 years or so should ensure they level up above the rank and file. They may be less willing to risk centuries of life with adventure, but adventure will arrive uninvited from time to time.
Think about what it means when a city that is 4% dwarf and 5% elf has elves/dwarves filling 45% of office-holders, 30% of property owners, 65% of bankers, 75% of the guild masters and only 2% "commoners".
