These are quite vague answers so I apologise for that but I hope they help a bit....
> better health care which is supported by the government economically and regulated/monitored by officials to ensure maximum safety and professional working environment suitable for both staff and patients.
> widely available (free) public services
> prisons - with now longer harsher sentences and larger facilities with more staff
> trade - more shipping ports and airports - allows more new and healthier options to reach access to us....
The positive effects of getting California is that it's closer to Asia, and California side of the nation at the time could have open territory to conquer.
If you remember newspapers were how many people envied war and how many thought that the British soldiers did wrong in the Boston Massacre where both sides were at fault.