You made a completely irrelevant point. How one individual person's 401k performs is not a point worth discussing.
The data on 401k performance for most workers is very clear. It is terrible. It doesn't provide adequate retirement savings.
This is how I look at pensions and 401k's.
A pension that pays out $20,000 per year is the equivalent to a 401k with $500,000 because the 401k can run out of money, financial advisors suggest not taking out more than 4% of your 401k in any year. So that 4% of $500,000 is $20,000
A pension that pays out $40,000 a year is equivalent to a 401k with $1,000,000.
Now what percentage of workers ever reach having $500,000 or more in a 401k?
401(k) Plan Savings - Is Your Aging Workforce Saving Enough for Retirement? - Carlson Capital Management
A recently published U.S. Government Accountability Office (GAO) analysis of a 2013 Survey of Consumer Finances found that 41 percent of U.S. households age 55 – 64 have no retirement savings. 61 percent have less than $50,000 saved for retirement and only 9 percent have more than $500,000 in retirement savings. In fact, the GAO calculated that of the 59 percent that has money saved for retirement, the median amount saved is $104,000.
1 This equates to about $310 per month in an inflation-protected annuity for the average 60 year old person.