I have known someone whose operation was cancelled because a more serious case came in & they found it quite distressing to be admitted to hospital, starved overnight for nothing. When it was all explained they were OK about it and were admitted again the following week. Also know someone on waiting list for hip replacement but is not in great discomfort at the mo, just accepts it. Should happen in about six months though. Not known anyone left on a trolley in a corridor, just read reports of such things.
Nothing to stop you going to your local podiatrist & if they think your foot condition is serious they'll write to the hospital on your behalf. So will your GP and GP surgeries have visiting podiatrists free of charge.
Owlswing your foot condition sounds horrendous & you do need to insist on being seen quickly - get others to support you.
If MPs 'go private' it's because they can choose when they are treated to fit in with commitments. Same goes for anyone who has private medical treatment & they're not all rich people - tho' wouldn't matter if they were, rich people are as entitled to choices as well as poor - many firms give medical insurance to their employees as part of a package. Sometimes including spouses and children which is very useful. I had it at my previous employers, when I left there my husband added me to his medical insurance policy, our kids were on it until they were eighteen.
Anyone can go to A&E and be treated for an emergency - thank goodness!