a frivolous research question

i for some reason have recently become rather aware of how many authors dedicate their books to their spouses for the support given to them throughout the whole process of writing... or words of gratitude along the lines of, "if not for him/her, i wonder if i could have pulled through this"... of course ppl acknowledge the help and support of colleagues and family members too, but i get the sense of ppl being esp grateful that there's like this ONE person he/she can always rely on/ who is always there for them...
and i'm really curious. is such emotional support really crucial? i suddenly am thinking if any study on correlation/ relationships between say, marriage and authorship has been done? like to what extent can we really be self-sufficient; self-reliant? out of those bestselling works (be it books, art, films or what not) we have, how many percent of the creators are married/ have had long-standing, happy relationships with their partners...can any meaningful and more structured investigation be done to look into this? is there even any causal relationship between 'unflinching' emotional support (which i guess can be best estimated using marriage, though not exactly very accurate also, since ppl marry for so many different reasons) and corresponding success of person? hmm...... right at this moment i realize i'm actually trying to delve into how true the "saying"--' behind every successful man there has to be a woman', is.
possible Econ thesis for next sem? or pysch/sociology project?? any suggestions/ comments out there? =P am i being totally weird to wonder...