Of course, it is the smart thing for highly successful people to cut themselves off & disassociate from unsuccessful family members, friends, & relatives. Such people will allow drain highly successful people in more ways than one, especially socioeconomically. It is not uncommon for unsuccessful family members, friends, & relatives to expect, even demand that highly successful people support them & bring them up to a higher qualitative living level.
All of us have witnessed unsuccessful people looking at the lifestyle of their highly successful family members, friends, & relatives, oftentimes bemoaning their dire lifestyle. Such members want the lifestyle of the more successful members of their families, friends, & relatives. Not only do they want their more successful family members', friends', & relatives' lifestyle, they may even go so far to demand that the latter support them because they believe that the latter has the means to do so.
The unsuccessful family members, friends, & relatives are envious of the lifestyle of the more successful family member, friend, &/or relative but refuse to improve themselves instead contending that it is the duty of the former to support them. The highly successful family member, friend, & relative clearly aren't obligated to support unsuccessful family members, friends, & relatives although the latter believe that there is such an obligation.
Many highly successful people rightfully disassociate, even disown their unsuccessful family members, friends, & relatives once they reach a high level of success because they know that these unsuccessful family members, friends, & relatives are toxic in more ways than one. The former further realize that unsuccessful people whether they are family, friends, & relatives will drain them down emotionally, mentally, psychologically, psychically, & especially socioeconomically. One can aptly state that to the average highly successful person, the unsuccessful person is a toxic psychic vampire to be avoided at all costs.