i can assure you with 30+ years in the travel industry, i've forgotten more about it in the last 5 seconds than you have since your little episode that started this thread.
Corporate travel is high self service through GDS provided platforms and has plenty of commission (fee for service AND backend commission). FLT just announced PBT margin for Corporate as the SAME as Leisure if you're still in doubt.
regarding importance: (from the FY20 Half Yearly) "Helloworld Travel’s corporate travel division to now be the second largest corporate travel business in Australia and New Zealand, with an annualised TTV of over $1.6 billion from our QBT, APX, Show Travel and TravelEdge operations." - so I'm confident it's a core part of the business. Burnesy's Government connections are renowned for securing sweet government deals.
my point re threats to retail and lack of online exposure still stands given both WEB and FLT have both announced record results this week.
(20min delay)