At the very least, ISO could make the cost to get a copy of a standard not some arbitrary 3-digit number of Swiss Francs, but let the committees themselves have a say in this.
In my opinion, for example, it would make perfect sense to make royalty-free specs (i.e. standards that only have Type-1 declarations) available online for free, while charging 4- or 5-digit numbers for patent encumbered specs (standards with Type-2 declarations) for which those who need access to those will have to pay 7- or 8-digit numbers in royalties anyway, so it's still an insignificant extra obstacle for them.
The goal of ISO should be to promote international standardization. Its current business model is instead creating financial obstacles to adopt international standards, as well as creating financial incentives to base implementations on outdated drafts and old versions, which defeats the purpose of having processes to amend, correct and extend standards.
Other standardization organizations like IETF, W3C, ITU are capable of "making money somehow" without having to put their standards behind a paywall.
Standards are a lot like laws, except you in theory voluntarily comply with them (though not always — there are plenty of cases where compliance to ISO standards is obligatory in one way or another). It would be insane if politicians would put the laws they write behind a paywall, for sale to lawyers at 118 Swiss Francs per article, with the argument that "judges need to make money somehow". If you expect people to respect the law, the least you can do is to let them actually see the law, for free. Why would it be any different for international standards?
Heeellll no!
An international co-op, fine, but please not part of political committees such as the UN!
In any case, ISO WGs tend to publish final drafts openly. Purchasing the actual standard document is not something required if you are just experimenting or playing around (and if you’re not, you probably can spare some change to support the organization).