The work place is built on a community of people engaged for the accomplishment of a defined cause.
Membership of that community demands subscription to its ethos, rules, regulations, customs and traditions. A new person joining the organization will not be familiar with all aspects of the ethos when they join the organization, but they will be expected to abide by them as they discover and learn these unwritten expectations.
But what if I don’t subscribe to those belief and customs and experience culture shock? The short answer to that question is that fortunately in employment and organization membership is by choice and if you are unwilling to conform and are not willing to face being ostracized within the community you may leave.
The long answer to that question is that changing others behaviour will take energy and some measure of resistance must be expected.
The real answer is should I change my behaviour to fit in. are there ethical bounds I can appeal to. What sacrifices am I willing to make to get my career along in the direction I want. Is the “pay” worth the “effort” to adjust my behaviour to conform to the organization requirements. These are questions you must have answers to if you will thrive.