Not all TOS are equal, and not all services are equally important and have same severity.
An example would be the number of people who don't want to issue perfectly valid chargebacks against Amazon because they'll lose access to digital purchases (kindle, audible, etc) in retaliation.
So more on-topic, it's conceivable that, for example, you have a dispute over a Google Play purchase, and in trying to exercise your consumer rights, you lose your access to your gmail account.
You don't need to be a troll to be violating a TOS, "if they're being punished they must have deserved it" is no more valid online than off.
tl;dr: Everyone keeps saying Google/Facebook/etc but I am talking about hosting your services with individual corps, not "all eggs in one basket" style.
Let’s not forget your domain registrar either…
It's likely a lot more rare to get banned from your VPS or ISP than it is to get banned from something like Google, since who knows what the rules are there? Your kid could upload an inappropriate video to YouTube or something, and they'll associate IPs with your account and suddenly you lose access to Gmail.
I haven’t heard of any case where a domain registrar took away a domain other than as a consequence of criminal prosecution or court orders.
In any case, it’s far more robust than e.g. Google shutting down your account for unknown reasons.