Except my concrete asset is worth negative hundreds of thousands
Did your house burn down and you didn't have insurance to rebuild or how the hell did you manage that? The market has softened a little, but not that much. Well, maybe if it was a $30,000,000 home?
Geek and nerd had negative connotations when geeks and nerds were commonly poor, but then things shifted and, notably with the rise of the Information Age, being a geek and/or nerd turned into being useful in becoming wealthy. Now it is a compliment.
True of all insults, really. Same reason, for example, words with associations to slavery are considered insults. Or those related to the sale of sexual favours. The implication is that one is poor. Any words you can throw at someone who is rich will be something most people will want to wear as a badge of honour.