The fact that people receiving medical or economic assistance often face irreversible cutoffs and net reductions in resources if they try helping themselves is so perverse.
I have seen people in this situation. Sometimes you don't even need to be poor, just in a bad situation where you need help and are getting it. But deeply incentivized (captured might be the right word) by artificial risk structures to avoid any attempts to get out.
That's why we need UBI, SSI ends up being an indirect UBI anyway but at least with a real UBI system people wouldn't be afraid to try to work during the time periods they were feeling better.