The first group believed that your field of study should be of your interest because if you don't like something you don't improve in it, psychologically. On the other hand many of student who don't like or hate their field they leave behind their education in the middle of study,
that itwhich leads to the loss of personal equities such as money and specially time, the most important thing in our life,.
what I say abovementioned both group opinions isare right, but I think in choosing field of study students should considertake both parameters into account(because the word consider is repeated) , i.efor example . first they should consider their interest and list university fields based on that. Then they can choose among options with considering jobs opportunities. In a nutshell, having a job that you have a deep knowledge about it(you can rephrase: "that you have professionalized in" or "have expertise in") help you to increase your creativity and performance that leads to progress in the work place and income.
Hope this will help :) By the way I think you should include the type of task you are doing: IELTS, TOEFL or sth :) It would be much easier for us to assess )