I understand what you are saying is true ..but is there any official warning or caution on CIC website ?? I tried searching but could not find any word on coming before & working thing.
You will have to write a SOP and explain your situation. Reason they are asking for employee letter is to see your reason of return after you have completed your studies.
Good luck !
What is the program and college you applied to?
Go for Caips note to know the reasons in detail, as sufficient fund does not make sense as you have shown enough funds.
Not applying for wife's WP can be a reason!
"My aim is too earn quick money and also doesn't want to study hard".
Would seriously suggest you to reconsider your decision to go to Canada again, as you will get shock of your life & will be very disappointed about to decision to come to Canada.