So I've been looking around at camera bodies and gear and noticed the more expensive ones have "weather sealing". From posts like these, I understand how it is implemented. However unlike waterproof cameras, I haven't seen DSLR/mirrorless camera bodies with IP codes or have an standards of such with any code (exception of smaller point and shoots?)
From this I can conclude they are defined per manufacturer and since they don't have any "standards" I can assume they may survive better but it doesn't mean they will. Since they don't have IP codes, I assume cameras going into water is bad, goes without saying I suppose. Given how vague they are, I don't know how beneficial it is?
Are "weather sealed" gear tested for how good their "weather sealing" is? Or is it more of the mentality of the, "every little bit helps" even if it's not a huge or noticeable amount?