Not necessarily. In general they are interchangeable and it does not have mean that if you use jij/wij/zij you are emphasizing the subject. However, when you do want to emphasize the subject you will only use those and not je/we/ze.
On a side note, hij is always hij there is no he.
Californian and interested too. Seems like the U.S. is divided in two when it comes to the you plural - http://www.dailymail.co.uk/news/article-2336660/Yall-you-guys-Dialect-maps-showcase-Americas-linguistic-divides.html