We both work all day and Finn does not suffer at all, in fact he has had the face on the last 3 days because he has had to share his bed with his other mother while she has been ill - you should see what he does to it to make it comfy while we are at work - he makes himself a lovely comfy nest or if it is warm he throws all the bedding on the floor - our last dog Barney,who we had 15 years and both worked full time, was just the same, if you get them as puppies they soon get used to the facts of life, we just make sure that at evenings and weekends he gets as much attention as he needs. We did wonder about getting another one when we lost Barney but after 5 weeks the hole in our life was huge and we had no option.
Someone asked us to rehome an 8 month old Patterdale Terrier the other week, we brought her home but Finn was harrassed to within an inch of his life, he likes peace and quiet so we had to say no because this is his house and I would hate to upset his routine - he is the boss - full stop.