[watwut]

It just does not work like that. Many people with stable jobs are lonely. Long hours means that you don't have connection with family even if you have it. You live separate life from partner and your children are not close to you.

One partner working long hours is enough for both partners to be lonely in marriage. Partner having time consuming hobby is enough for you to be lonely in marriage.

People in work are not friends, they are competitors, allies, enemies, whatever. They are not people you can talk with openly. Moreover, there are plenty of jobs where you work mostly alone or have only temporary relationships.

End result is loneliness.