Zina is never allowed period. Even if you're poor, you still have chastity and purity to your name. Don't ruin that too by being both poor AND impure (unchaste), giving people even more reasons to reject you.
OP: "in order to maintain our status I can't marry someone outside our status circle. Now I have to get rich no matter what otherwise I will never be married"
Your struggle is not that you cannot get married (since you're only considering marrying into a family of rich folk and refuse to marry into a family of working class or poor folks; that is a conscious decision to reject maybe 80% of marriage prospects) . Your trial is that you cannot overcome the desire for status.
This trial (status) is causing you to choose Zina over marrying perhaps a righteous woman of poor background; causing you to consider doing what is displeasing to Allah (Zina) just to stay in the ranks of your current social circle.
So now you need to decide what your priority is; pleasing Allah (ﷻ) and guarding your chastity or pleasing people and guarding your status [with the risk of falling into sins like Zina]. If you choose the path of good, then drop the social circle [or at least drop your concern for their approval].
If you still insist on marrying into a rich family of your social circle, then your only Halal option is being patient until your financial situation changes and pray for that. But at no point is Zina an option.