I believe that it's a generational thing.
When I went to University in the late 1970's (when computers were still seen as rooms filled with metal cabinets and blinking lights), not only was Computer Science a rising subject, but it attracted bright people.
I will admit that at the time, it was regarded as a very niche subject, having just about broken free of being a sub-genre of Mathematics, and the people were, how can I put it, um, different, or maybe eclectic, but some of the brightest people I have known were working with computers.
It needed a new and different mind-set that required you to look at problems in unusual and in some cases completely bizarre ways (the canned solutions had not been developed yet). You needed to be a little weird to be attracted to the subject, and there was no promise of high salaries. It suited future geeks like me.
I was lucky enough to have the right skills at the right time, and I rode the wave through the '80s and '90s, being one of the people who advanced rapidly because there was a skill vacuum which led to salaries and responsibilities rising faster than my peers in other jobs. At this time, the high wages and apparent skill shortages meant that Computer Science and related disciplines looked very attractive to new students, which led to a mushrooming of the number and type of courses and students studying them.
But it also led to people to come to the subject as a way of earning a living, rather than because they were really interested in it. A true Computer Scientist will think about computers outside of work. Someone using the discipline to earn a living will normally switch off as soon as they leave work. There are too many people for whom computing only as a job, and this damages the field as a whole.
There has also been a backlash. Many people outside of IT do not understand why there is a legacy of relatively high remuneration. It is still the case that skilled computing jobs can command high salaries, and this is often resented by other people. Many organisations are attempting to align their IT staff down to clerical grades, not understanding that this will prevent them from recruiting the best and brightest. It also makes older people like me very jaded, because I see the lower levels of the profession full of grunts who do not, and in many cases, cannot fathom what it is they are doing beyond following procedures. This reinforces the belief that all jobs in IT are over-paid.
I believe that the same thing has happened in Climate Research, but instead of it having taken 40 years, it's happened in about a 15. The older people who really know what it's all about are leaving the high profile Climate Science roles, and their place is being taken by people who see the subject as en-vogue and sexy, but do not bring the required levels of in-depth knowledge. The big difference is that it is not money, but reputation and influence that is driving the desire to join the field. And instead of being over-paid, the current crop are seen as having too much influence.