We're just a money - making machine, not a soccer club whose principal function is to go out in search of silverware. (arsenaltruth.squarespace.com)
«[L] aw has two principal functions in society: to assist in the creation of wealth and to act as a counterweight to power (corporate or state)». (slaw.ca)
Principal functions include cash register operations, product knowledge, product... (simplyhired.com)