I wouldn't judge someone because they went bankrupt, not without extra information. I've professional experience of bankrupts and there are so many reasons why it happens that it's impossible to judge simply on the fact of someone going bankrupt.
OP, you shouldn't let public opinion sway you from NOT going bankrupt if it's the right thing for you. It exists for a reason and personal circumstances can so easily change. And an IVA is not necessarily suitable for you, it depends on your circumstances and whether the creditors would accept your proposal. It isn't an alternative to bankruptcy as you can always go bankrupt, but you cannot guarantee an IVA will be accepted.
You should inform yourself of the positions you are not allowed to hold if you are bankrupt, as there are a few - like being head of the milk board (!).
You should also check the terms and conditions of your employment as you may be contractually obliged to tell them. Same if you apply for a job, many places credit check as part of their pre employment checks and it will show up for six years following the bankruptcy, so for the year you are undischarged and five years after your discharge date. (credit agencies keep records for six years). Some jobs will automatically not employ you (like banks or high up in local government) but most are fine with it. You can easily check this before employing.
They key is to be honest - like I said, most employers won't mind but if you say you haven't been bankrupt and they find out you have, you'll not be employed or lose your employment because you were dishonest not because you were bankrupt. The fact someone is bankrupt is public information and easily accessible to anyone who wants to know.
Highly recommend calling Stepchange and discussing with one of their advisors.