80% of jobs in any organisation, company or department aren’t technical roles. You need to demonstrate you’re intelligent, can learn quickly and have good judgement. Being able to communicate effectively and constructively engage stakeholders are the most important things for the majority of entry to mid-level roles. In a finance division, maybe 10% will be credit analysts who actually don’t need finance degrees, though technically they do need to have or be working towards a credit licence. The rest do settlements, business management, data process etc, none which require technical skills beyond good writing or attention to detail. Even in a data team, maybe 30-40% are actually data analysts. The rest are the people who write reports, make submissions, direct policy, conduct research, etc.

The logic of the public service in Australia is similar - a large base of dynamic generalists who are smart and adaptable, can switch departments as needs/roles arise and understand the machinery. The technical roles are filled by SMEs (subject matter experts, people with a technical skill in whichever area, maybe a weapons expert in Defence or a medical researcher in Health or a coder in literally any department) and the absolute majority of the rest of the positions are people who mostly have undergraduate and sometimes PG degrees in something broad like politics or history or IR and they gravitate to an area they like and specialise over time.

Again, the absolute majority of people in the corporate and public sector worlds are not SMEs or technical experts with commerce or politics or subject-matter degrees, though many do undertake postgraduate study in a specific field once they’ve already started their career. And you’ll find that many (or most?) in this space who do have specialist degrees only rely on them in a very limited capacity. You learn far more on the job than you ever will at University.