Your argument is that some meetings are necessary to make decisions. That is not what the OP is tired of. He is tired of 'corporate bs'. Productive meetings are not 'corporate bs' so your comment is not relevant.
And it's also perfectly OK to find this out about yourself only later in life, when you have gathered some (more) professional experience.
What's not OK imho is labelling other people's version of work as "corporate bs".
If someone feels like a meeting is "corporate bs", that speaks to a failing of those hosting the meeting to properly communicate the intent of the meeting. If you are not able to effectively communicate with the people you work with, perhaps it is you who isn't cut out for corporate life? If you think you can treat a class of kindergarteners like it is a fourth year university course, teaching kindergarten likely isn't for you.
Peter principle applies, I suppose.
It takes effort to mitigate all that and it takes even more effort to try to work around it if it happens a lot. If you are ready and willing to improve the system - welcome to management ;) If this feels like a whole lot of crap to you - better stay away from big companies, do some consulting, find startups with like minded people... Staying on a job, being unmotivated or stressed out is not good for anyone involved.
To your second point.. corporate bs is not necessary and should be called out. Most of it falls into waste. Another large chunk falls into people trying to climb the corporate ladder.