I got it.
For every one who beats the market, there is one who doesn't. In reality it is not easy to beat the market.
Back in my working days, I was the Union chairman for wage employees, at the refinery, where I worked. A refinery in the same valley, terminated their defined benefit pension, and went to a 401k. It was not the Union's idea, it was a company decision. They made that decision to benefit the COMPANY. If a few employees turn out to be winners, they don't care. They also don't care if someone exhausts the 401k and ends up old and broke. When the person leaves employment, the company knows with certainty that their obligation is done, no matter what.
The genesis of 401k plans was as a tax shelter (dodge), take your pick, for deferred bonuses to executives, at a time when the marginal rate at the top was 70%. Obviously the original benefactors of 401k's were people at the top of the income scale. They are the one's who can afford to max out the allowed contributions. They were originally thought to be an augmentation to defined benefit plans. That is not how it has worked out, as more and more companies are using them solely for a retirement benefit.
The median 401k balance for a 65 year old person is $88,500. So, half of them have less than that. The average balance for a 65 year old is around $426000. So, a few winners and many losers.
I get it, you are in a situation to be a winner with them. Most people aren't. An $88k nest egg makes for a very meager retirement.