The thing that surprises me most on threads like this is that so many people find it unbelievable that others can, and do, save a lot of money.
I don't know whether it's because a lot of people seem to assume that everyone spends to their salary - so there's little left no matter how much they start off with - or whether they don't realise just how much more a lot of people earn.
I suppose if your own circle is limited in diversity of their careers, and income levels, then it's easy to assume that it's the same for most others.
I've worked in roles varying from shifts on factory floors to senior management, and latterly consulting, over my 35 years of working life so far and earned anywhere from minimum wage to more than 10x that at some points. I've met, and got to know, people at all the many earning levels and heard loads about their personal lives.
There are many people who could only dream of saving as much as OP does, but plenty of others who would think nothing of spending thousands on a last minute weekend away and probably not even notice the blip in their account.
There are then those people who work hard towards FIRE and they don't fit into either category but they might save thousands upon thousands per month, every month, while living a frugal life.