Yes, you are correct, there was no need for name calling. But your cousin is not representing reality to you. Sure, v10 firms are very prestigious, but only marginally so more than v20 firms and v30 firms.
And like VM notes, the difference is still really pretty marginal as long as you are still at a 160k firm, when you compare that to other firms or jobs.
VM: Yes, there is probbaly some hit against yeshiva guys as regards employment.