Rob Livingstone, a fellow at the University of Technology Sydney (UTS) and consultant, said the same could be said of other disciplines, such as engineering.
"The majority [of graduates] 10 or 20 years later are not in engineering - they're doing other things," he said.
However, he believed such progression was healthy.
"The fact that people are switching into different career lines is a really good thing in the sense that it's where people are building complementary and supplementary skills and experiences that are a direct contributor to future employability," Livingstone said.
"In doing so fundamentally what you're starting to do is not see yourself as trading a good resume and/or experience with an employer for money.
"What you're doing is seeing your career as your own business because you're taking very active control and ownership over the decisions that affect your long term career prospects."
Professor Nick Wailes, Associate Dean (Digital & Innovation) at the UNSW Australia Business School, saw the range of graduates employed in the Australian ICT sector as evidence of "significant role" technology now played in society as a whole.
"Technology just doesn't get taught in technology degrees anymore," Wailes said.
"Within that curriculum I think there's a real shift away from it being a deeply technical subject to it becoming much more business-focused."
That led to ICT being integrated into a wide variety of studies. The ACS-Deloitte report said engineering, management and commerce, creative arts and science graduates were also key sources of skills for Australia's ICT sector.
"I think anyone thinking about their careers is going to have to know what technology can do for them and how they can work with technology specialists in any field," Wailes said.
"It's never too early to start."
Professor Paul Strooper, Head of the School of Information Technology and Electrical Engineering at the University of Queensland, agreed that the way ICT is being studied is fundamentally changing.
"ICT is becoming pervasive," Strooper said.
"For example, there's not a single branch of engineering where ICT doesn't play a significant role anymore, and the same goes for science."
Strooper believed that pervasiveness also saw more IT students consider double degrees.
"We probably almost have as many students doing dual degrees in IT as we have students doing single IT degrees," he said.
"There's a huge demand for dual degrees with IT which I think is appropriate. Rather than taking IT by itself, you need to apply it to something."
