Is a job ever worth your sanity?

I found myself thinking quite seriously about the above question this afternoon.
Now, let me make one thing clear right from the off.
I love what I do for a living. I get to earn money by doing the thing I love most - writing.
Putting words down on a page in a somewhat creative manner is something I have adored doing ever since I was a young child, when I used to churn out countless random, highly imaginative and utterly crap short stories with no plot whatsoever.
As I grew older, I realised with a fair bit of certainty that I probably wasn't good enough to make it as a famous novelist so switched my attentions to the less fiction-based career of journalism (no sarcastic comments please, I never, EVER lied or exaggerated anything I wrote for my newspaper).
Anyways, the love for writing never faded and after university and a couple of years as a journalist on a local daily paper, I ended up in my current job as a media and communications officer for an organisation that I had better not identify.
And I really do thoroughly enjoy what I do. Every day is different, there are challenges that I relish and I love the fact that being 'creative' in some way helps towards funding my mad shopping sprees at Primark.
But it can also be THE most frustrating job in the world, mainly thanks to some of the people I have to deal with as par for the course.
Now, I freely admit that I'm not the best person at taking advice. I don't like being told that there might be a better way of doing something than the way I am. Then again, who does?
But if I feel that person is right or, at the very least has a point, I will think things over and ultimately take the advice to heart.
However, what I simply cannot stand is when someone effectively disagrees with how you are going about something just for the sake of it and to interfere.
My job relies on me working both as part of a team and individually. There is a big emphasis when I have been put in charge of a project, that it is down to me to do it and nobody else.
If I ask for someone's opinion, even if I don't like or agree with their answer, I will accept it.
But when what you are doing is constantly interfered with - when you are asked what you are doing, why and wouldn't you be better doing it this way - when you have been entrusted with the job by people more senior than the person asking you, it is beyond galling. It's downright infuriating!
I believe I am good at my job and I believe others think so too. Therefore, I do not feel I should have to justify myself or do it the way someone else tells me to just because they think their way is best.
If someone I work with has been given a job to do, it would never even cross my mind to ask them what they are doing, why they are doing it that way and telling them how I think they should be doing it better.
And I would never down right suggest that I couldn't really see the point of the whole thing!
Time and time again I just feel as though certain people feel they have to stick their snecks into what I am doing and throw in their two-pence worth simply to make themselves feel better.
Well, I'm sorry folks, but that's just not cricket!
I realise that this whole post is a little bit cryptic but I really can't go into specifics due to the nature of what I do - spilling your guts on the internet is more than frowned upon by my employers (although it really isn't as cloak and dagger as I'm probably making out).
Essentially, I just found myself wondering this afternoon whether my sanity really was worth the job I love. How can I enjoy my career so much when I am rather frequently on the verge of a mini nervous breakdown or fighting an overwhelming urge to stab someone in the eye with a ballpoint pen?
Journalists I can cope with when they piss me off. I get irritated and sometimes a bit short with them and I can be quite forceful and opinionated when I feel they step out of line with me.
Yet it's a different kettle of fish when it's those you work with that make you wish you had a bottle of single malt under the desk to give an extra kick to your afternoon coffee.