In as much I'd like to put a value to the amount of money I'd like to make in my lifetime, I can't. This is simply because human wants are insatiable and the more I make the more my expenses and the more I want to make more.

However, notwithstanding the fact that I'm human and cannot be satisfied with any state I find myself, I'd like to make as much money I can to live the lifestyle of my choice, provide for my family and give them the best life they could ever dream of.

Also I'd like to make as much money that'll last my generation a lifetime even if I grow old and die, my family should be able to continually enjoy the life I've built for them.

Hence the reason why there can't be a particular value attached to the amount I want to make in a lifetime