But isnt it also about building foundations too?
By the time you get to 10/Pents the foundation is already built and so is the house that you put on those foundations along with all the extra wings and additions
Which is why it's time to rest back, enjoy the fruits of your labor, and know that when you leave all you built will continue on with others. 9's are satisfaction with earthly things, 10's are what comes after--spiritual.
The 10/Pents is also, by the way, sometimes called the "Lord of Wealth." This means one of two things. Either he is buying things or making money or working out (or whatever) for the sake of it, rather than for some purpose (like a body builder who is plenty strong and healthy but obsessed with creating more muscles to have more muscles), or he's got so much that it has ceased to have any meaning for him so he gives it away.
I don't know if that helps with your question, but you can see how this isn't someone likely to stay put. He either needs to keep moving to make more (for the sake of more) or he needs to give up everything because it has more value being given away then in keeping it.