It's not a stupid comment. It depends on lifestyle and when people like that see 1 million pounds in their bank account their lifestyle adjusts accordingly and they all of a sudden believe they've got a never ending amount of money.
Now lets say your 25 and you live to 85. Given current interest rates you will need to live on 16,700 pounds per year until you die. Thats crap.
Thats not even taking into account any money needed to pay off a mortgage or buy a car/house etc.
but that's not including interest/dividends/investment returns at the moment you could probbably buy a lot of good stock very cheap which would rise later in your life.
If you didn;t want to live in a massive house etc. 1 million would mean you could live comfortably on that using part time work or something you enjoyed to supplement your income.