Climate scientists are bigger swindlers - green new deal, global warming, carbon credits, and on and on - their scam makes Bernie Madoff look like an alley hustler with a game of three card Monte by comparison.
There are a lot of parallels. Such as over reliance on simulation, over reliance on complex models that are extraordinarily sensitive to input assumptions, models that are so complicated that they can't be audited, models that are created by the researchers and never seem to give results other than the results they want, conclusions from the models never seem to indicate (because they can't) that the assumptions are wrong or that they need less money, severe group-think, untestability by third or disinterested partys, etc. Constant appeals to authority and experts being the only ones who can understand, etc.
I would say the primary difference is that climate "science" has been latched onto by political forces, and they haven't figured out a way to do that for high energy "physics". So the harm is much less in the "physics" case because they are merely wasting billions of public dollars pursuing their hobby, which at least employs a few grad students, and is several times less evil than the billions we give to banks for no reason at all.
Note that not all science mega projects are swindles. Astronomy is great because their objective is clear and noble, they generally release all their data and don't have anything up their sleeve. The money spent results in actual science. Similarly with things like the national ignition facility, fusion research to a large extent, etc. I'm not anti science or even anti spending big money on science, I'm just saying that what the particle accelerator people are doing is not science.