Tony, I just re-read your post and I think I know where you are coming from. You think that if someone likes my page, that's it, they are automatically entered. That is not the case. Liking the page is step 1 of 2 to enter the sweepstakes. Step 1, like the page to reveal the form. Step 2, Complete the form, read the terms and conditions and acknowledge it, and then hit submit. THEN your entered.
This is the view of what you would see if you liked my page:
*There are more terms than what is shown, it got cut-off