Is it whole CPA industry like this?

I know text is a bit longer ,but please read it if you have time and share your toughts

So i am in CPA industry for some time now,i was working with all major CPA and PPD sites,like Adworkmedia,fileice,sharecash etc.
I was never actually wondering why would someone pay like 1$ for simple email submit,or for download/install offer,but for some reason,few days ago i decided to find more info about some CPA offers....here is what i found out.
-Pin submits

i have firstly i have checked Pin submit offers,and i saw that some of them are charging users up to 30$ per month for some really stupid things,like win iphone 5,win ipad etc. and i dont think anyone ever won anything because i looked up on internet and all i found was numerous complaints how those companies are ripping people off

-Email/zip submit

After that i checked on email submits and i found out that ,they are spamming peoples email with hundreds of emails,and many of those emails are promoting shady stuff,also when users enter theirs phone number in that survey ,they will receive phone calls from advertisers,i got 5 phone calls in only 20 minutes
wtf?

Download/Install

At the end i checked download/install offers,of course they are not better than others,i found out that they are installing adware-spyware stuff on PC-s ,like spammy toolbars and programs,f.e Registry cleaner -this program is giving fake message to user that his PC has errors and if you want to fix you need of course buy full version of Registry cleaner,which costs like 30$ and its basically useless( i have checked reviews)......this is just example and other porgrams are same or even worse

So to summarize whole cpa industry is,in my opinion somehow blackhat and there is none legit offers ( or just few legit ones),what are your toughts on this?