>Why do you think VPS providers wouldn't be interested in extracting your data? Whether you use a VPN provider or a VPS provider, it's always going to depend on the company whose service you are using.
The presumption is that the business of VPN providers is fully based on providing privacy, giving them a strong perverse incentive to abuse their access to this information and for whichever purposes. Plus, their whole infrastructure is orientated towards providing VPN services, with their own software, making the effort involved in collecting their customers' data and behaviour much smaller and more scalable.
VPS providers, on the other hand are in the business of offering hosting. What software their customer chooses to use on their VPS, and for what purpose, is anyone's guess. While the VPS provider could technically log and exploit the incoming and outgoing traffic from customers who happen to be running VPN software on their VPS, the effort involved in handling the myriad of bespoke VPN setups used by such a small proportion of their customers would be utterly pointless.