The term immigrant visa is well defined[1]. If you want to bring your wife and have kids and buy a house you should get an E series visa[2], not an H one. If you choose to go with the H-1B anyhow you are taking your chances and like any chance sometime it doesn't go your way and you have to deal with the consequences.

[1] https://en.wikipedia.org/wiki/Visa_policy_of_the_United_Stat...

[2] https://travel.state.gov/content/travel/en/us-visas/immigrat...