No amount of money–neither income nor assets–can keep you from living on the edge. Wealth as it’s typically defined cannot and will not keep you from engaging in patterns of behavior which push you to the limit of what is sustainable, whether financially, physically, emotionally, spiritually, or often as not, all of the above.
Anecdotally, if there is any correlation here, it’s in the opposite direction. After someone reaches a point where need-meeting essentially never occupies any thoughts, then increasing money tends to increase reckless or at least unhealthy boundary pushing. Stress goes up, lack of awareness goes up (where is all this money actually going?), career satisfaction goes down, the level of leisure required can never keep up because true rest increasingly rarely enters the equation at all. And so on.
I think margin anywhere tends to beget margin everywhere. Edge-living is contagious, but margin-keeping can spread like wildfire not only within your own life, but to the lives of others. And like the fire of God, this is a purifying one, helping to remove that which keeps us from our full humanity.