1/ I'm from a 3rd world country. Street children here would give everything they can to get into the work force. They're not allowed to work anymore because companies get too much flak for hiring them. Instead they starve on the street and resort to crime. It's easy to say 'no work for children!' from your comfy home.
2/ Looking after an employee's wife and trying to find Asperger graduates to employ is not illegal. The environmental test cheating is only having a negative effect because it is illegal, dishonest and fraud. None of the things mentioned by Alex are any of those. He's very up front about it - he's giving presentations on it while his employees are present.
3/ Not necessarily evil. A company could pay $100 to dump some waste in their own country with full regulations, or pay a poor country $10 to dump the waste there. If that $10 means better schooling for children there, then I'd say accepting a bit of waste that can be cleaned up later seems satisfactory. It's actually worked out quite well in some countries.
Basically - you're applying 'justice' that makes you feel better, and not justice that really solves anything. Making people like Alex stop bringing together teams that create things we use every day isn't helping us.