Don’t know about “expect”, but at the time there seemed to be popular hope that with the collapse of USSR they would get some of that sweet western prosperity. When that did not come to pass even when by all accounts the Russian government of that time was trying to lean into normalized relations with the west, then some “the west still keeps us down” narrative is unsurprising. It was in the midst of continued economic struggle that Putin came along and started reasserting a more nationalistic philosophy in Russia.

While it might not have been reasonable to expect, in retrospect it might have been in NATO’s best interest to be more proactive in helping Russia during that window where they were actually friendly. They might have managed to avert Putin’s rise to power.