I feel like there's a big difference between $10M and $1M. At $10M you're free to no longer work because of high returns from that money, you can effectively never worry about money again and live a comfortable life. At $1M that isn't true, you still need to work full time to maintain quality of life. $10M is obviously more life changing than $1M in terms of opportunities you can safely pursue.

i think it's a sliding scale.

if you were previously living on streets and frequently going hungry, then you can likely sustain yourself very well still without working. 1M translates to 27 years at $3k/month expenses. if you chose to supplement that with work, you can easily double that runway.

obviously it's not the same as $10M, which would allow you and your children to never work again, but jump between that and no food/no shelter is not as significant. for those who already have financial stability, $1M only serves as a safety net or retirement fund and cannot act as an early retirement plan without significant cutbacks, so the jump from 1->10 is significant. in the same way that 10M->100M extra income for Bezos is not gonna change much.