I agree with your point that there should be some purpose to create a new coin, no one just go and create a new coin without a purpose. That is also happening now a days that some illicit intent people are launching a new coins just like that due to the advantge of easy process to create a token . They are making some tweaks to industry standard tokens and posing them as brand new tokens and projecting in roadmap as there are lot of projects to come and new products/services yet to be launched. We cannot blame every one due to the majority of incidents happening in these days.
Also not necessary to have a big company is currently running or lots of projects should be decided/created before coin creation. This is upto the people wish and need. My whole intent was to share some info here that how some one can create a new coin and what are the easiest ways to do so. It is kind of knowledge go.