system
Given the following post, respond as if you're commenting on Reddit:
human
[WH40] What is the daily life of a "middle class" Imperial Citizen?

My lord, ever jealous of the popularity of Kallendine's 'Benefits of Tyranny', wishes to publish a rebuttal. However, lofty as his spire is, he has never really encountered the common people outside youthful sport hunting dregs, and has blessed me with the task of understanding the lives of your average imperial citizen of status higher than the serfs of Sepherus Secundus. I know that those who labour in the neverending grind for planetary stability tend to have very strict work schedules, but what is it really like for your common fellow to wake up in a new day in an Imperial world, to when he or she returns to slumber for the next, and, if you'd like to be remembered by me after I achieve the elevating approval of my lord, how does this compare to your unfortunate serf, who seem to often be limited to strictly eternal toil with required rest spotted about?
gpt
The Imperial Citizen who may be said to occupy the middle class will generally fall into one of three categories, criminals and heretics whose ill-gotten lifestyles are unworthy of consideration by your lord notwithstanding.

1.  Minor officials belonging to dominant agencies on their home planets depend upon a higher complement of resources than manual laborers or semiskilled workers.  In order to properly complete their functions within the Imperium's great administration, they require superior food and accommodations, as well as occasional intellectual and spiritual enrichment, distinct from irresponsible and oft heretical diversions, beyond the working norm.  Of course, as with all true the servants of the Emperor, they receive and ask for no more than is absolutely necessary to perform their roles.  Those worthy of further resources shall receive them, for the Imperium of Man is a just and good warden of humanity.  Private rooms, varied meal composition and the odd amasec are broad features of life in this social category.

2.  Servants of the nobility and high administration enjoy a middle-class lifestyle in their own right, though commonly further improved by the surroundings in which they work.  They are paid from the fruits of righteous service earned by their masters, and it remains the sovereign and essential right of the Imperium's most materially empowered citizens to attract the devotion of the finest advisers and agents.  Such employees, as you prove so well by your loyal execution of your master's wishes, are again granted the lifestyle necessary for their function in service to the glorious Imperium.

3.  Those who work independently of the great governing agencies of the Imperium or the domestic power class may still enjoy a middle-income lifestyle by providing valued services to other citizens; their life consists of small-category trade and sales as well as the same pious habits demanded of all blessed to live in the Emperor's realm.  Prayer and enjoyment complement the brutal necessities of work.

Conclusion:  The existence of a middle class citizen of the Imperium is a worthy and fruitful one, essential to the survival of civilization and concomitantly rewarded with carefully sanctioned and judiciously distributed luxuries.  The triumph of tyranny is in allocating resources to the profit of humanity, but a kinder hand may achieve just as much and more.

TL:DR  Relative to serfs, more free time, more variety, more comfort.  Still cogs in the great Imperial machine, but better oiled.