Please. Meet more people or just read a newspaper or book. The rich love to whine about dissatisfaction, but it is in the smallest tier of unhappiness. The stress of dealing with (or putting off) healthcare you need but can't afford, being evicted or having your utilities turned off, watching those around you slowly die to a drug epidemic, living every day in fear of being arrested by the police that target your neighborhood or your race.....there are actual hardships in life, and the boredom of being out of ideas on how to spend your money is not one of them.
Imagine being born into a rich family, and knowing from day one that nothing you do really matters. Any screwups you have will be fixed immediately by daddy's money. And anything you accomplish, it'll be like "Well yeah of course they were able to do that because of their privilege." Nothing is yours, you aren't even the one responsible for your successes or failures. Life is meaningless and it's because, as the article is trying to say, there's no adversity to give it meaning.
Nothing actually gives life meaning by the way, that's just a shorthand I used.
People ultimately accept their situation and work within their circumstances to make things better
The first is a prerequisite. Hard work might be needed, but not always, specially if you are born in to a rich family.