On personal level for example, I use gmail/google search/rely on google to tell me weather and search news and do FX rate conversion, do some unit conversions, etc. I used to own android based phone and it made life simple to have gmail compatible app and the likes.
Similarly, I can use amazon for shopping, trying out / learning AWS and even get kindle to read ebooks should I desire. heck, amazon provides entire infrastructure to efficiently deliver my parcels --- better than my Government's mailing program.
- Similarly majority of Business world runs mainly on backs of Microsoft (when it comes to corporate tooling and computer OS).
- Even take example of Apple -- their products are worldclass and its integration with its own suite of products makes life so much simpler -- iPhone, iWatch, their storage offerings, etc.
Now imagine having to utilize products between dozens of companies instead of these giants who you don't know would be able to survive in long run. And those blaming these tech giants for lack of collaboration for a market standard -- sure, that is correct but remember it was much worse to integrate products and services among different vendors back in 1980s and 1990s when you had dozens of medium and large companies.