Looking on the internet deeply has found these results:

is too important to have is the most popular phrase on the web.

is not too important to have 1164,000 results on the web	is too important to have 1342,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
That site's too important to lose. My dancing career is too important to me. This tool is therefore too important to be jeopardised. She's far too important to risk traveling with me right now. But your imminent destiny is too important to be sacrificed. Lifeline ferry services are too important to be ignored. It's because my role as a witness was too important to compromise. Our marriage is too important to me.	This is too important to get wrong. But this is too important to be deterred by dangers imagined. Mr Kinnock is not to take this personally, for it may be that he is a great fan of football, and I know that he is a talented Commissioner, but I think this matter is too important to have to bring before the new Parliament again. But your imminent destiny is too important to be sacrificed. My dancing career is too important to me. Our marriage is too important to me. The information I have is too important to hold back. This chest is too important to my friends.

is not too important to have

1164,000 results on the web

is too important to have

1342,000 results on the web

More popular!

This is too important to get wrong.
But this is too important to be deterred by dangers imagined.
Mr Kinnock is not to take this personally, for it may be that he is a great fan of football, and I know that he is a talented Commissioner, but I think this matter is too important to have to bring before the new Parliament again.
But your imminent destiny is too important to be sacrificed.
My dancing career is too important to me.
Our marriage is too important to me.
The information I have is too important to hold back.
This chest is too important to my friends.