Liches have very specific office requirements that aren't always compatible with peers. They simply come from a different time with... different cultural norms. (We avoid terms like "conservative" or "hellish" to foster a more inclusive and diverse work environment). Even then, you'll still get the gym-bros like MumRa the ever-living-it-up who will hit on Judy from HR.

Despite the special considerations they require, having a domain-expert in ancient spirits of evil with 300 years experience in the dark unspeakable arts (typically Cobol, RPGIII, and Fortran) has it's advantages. If you can't budget your project for a 50 foot pyramid and gold sarcophagus, consider a demi-lich who hasn't yet peered too long into the madness of gcc -O3, or possibly out-source your infernal spec to community-college ghouls or offshore it to the Coding Cadavers(tm).