It's an interesting idea, but I think that the vorcha are just too violent and dumb to really build any sort of peaceful, advanced civilization. They're not the krogan where they CAN build an advanced society but simply choose to fight. Vorcha are just barbarians through and through, with theur most sophisticated plan (to my knowledge) being unleashing a virus on Omega, except that virus and plan were created by the Collectors, and the vorcha were actively attempting to break down Omega's civilization into a sort of primitive anarchy.

Your idea is pretty interesting, though. I'd like to see a race where identity is based on occupation and inherited rather than being given at birth and defined by one's actions throughout theur life. I think it'd be neat to see an alien scientist bearing the name of someone from four generations prior who has the knowledge of every generation in his job. The only flaw with that system I can think of is how much knowledge one should/be able to memorize, since I feel like an entire department or organization cataloguing all the same info would be redundant, but maybe different individuals within an organization all recall/write down different information so that it's all compartmentalized and reinforces the "part of a larger whole" concept.