1: rich is a relative term, but for the sake of argument let’s say it’s if someone has had all of their basic needs met (food, shelter, healthcare), is able to pursue diversion/fulfillment outside of work, and still has enough surplus to hoard without compromising the previous two points.
2: no, it is not possible because as long as there are those who lack adequate food, shelter, or healthcare any surplus wealth should be used to either provide a path for those who are lacking to be able to obtain those necessities themselves or provide those necessities directly (especially in the case of the elderly, infirmed, and/or disabled). To do otherwise would be to deny them of their unalienable rights to life (food, shelter, healthcare) or pursuit of happiness (to live a life worth living).
Hill Country Grassland Savannah (taken at Eisenhower Park)
Before Europeans moved into the region San Antonio would have been part of a vast grassland savannah. However due to western agricultural practices and the removal of large native herbivores cedar and mesquite trees now dominate the area.
This picture is a small example of the biome that at one point would have covered nearly all of the hill country with a vast sea of native grasses, buffalo, ground nesting birds, and various other native species that now struggle to adapt to the new modern landscape.
https://tpwd.texas.gov/landwater/land/habitats/hillcountry/vegetation/