The expression utter disdain, as used in the passage means

  In time past in Nigeria, being a secretary was perceived with utter disdain by many people. Other professionals such as teachers, lawyers, engineers, surveyors, estate officers and architects were revered. Many issues readily come to mind concerning the old perspective of secretaries as professionals.
One, they were regarded as people with little or no education. Indeed, many of them were said to be mere typists who learnt how to punch keys on the typewriter. They hardly had any formal education but obtained doubtful certificates. This was made possible because anyone could easily learn to be a typist under the shade of a tree or in a personal office of a retired secretary or a chief typist from any business organization. As long as a short piece of work could be typed almost accurately and in record time, one then became a secretary. This unrealistic practice – to call an unqualified person a secretary – might have been introduced and sustained by people who did not know who a secretary was. The educated secretaries obtained a minimum of the Ordinary National Diploma (OND) or its equivalent from institutions in and outside Nigeria, particularly Great Britain, Canada or the United States of America.
Two, they were mostly women and very few male secretaries, who suffered more humiliation than their female counterparts. They were regarded as men who did not succeed in life and did the work that normally women were supposed to do.
Three, and deriving from the second reason, secretaries were, as a matter of fact, very close to their bosses. Most people, including husbands of secretaries, regarded such a mode of interaction as tempting – a kind of constant closeness which might engender a deliberation or unintentional amorous relationship between superior and subordinate officer. Quite often, such a situation could not be ruled out when body contacts was established inadvertently or deliberately between two people of opposite sex especially when either one or both people were attractive and attracted to each other.
Moreover, we often talk of the devil and the havoc he is capable of causing in the lives of people, particularly the unguarded ones.
In today’s world, these points of view concerning secretaries are fading fast. Now, there is a clear distinction between a typist and a secretary. Modern secretaries are trained in polytechnics and universities. Gone are the days when secretaries were taught only the art of punching the typewriters and various filling systems. They are also encouraged to take training courses other than secretarial duty. Many secretaries have had their training in faculties of business administration, law, art and mass communications of universities. They take relevant courses in administration and other social science departments that enhance their personality, carriage, interpersonal relations and office management.
Obviously, secretaries, including the male ones, are more important and well respected today than in the past.