Most clubs operate that way. i.e. loans rather than investments. It's not every club that can rely on dodgy financing from Russia or the Middle East.
If it wasn't for Les, there might not even be a club. He loaned us that money at zero interest and has continuously written off large chunks of it. Part of the deal was that he restructured the business operations of the club into a more professional and fiscally responsible outfit. Something that has reaped benefits in the short term and put us in good standing for the long term. He also added the incentive to boost the Well Society membership which, again, has made the club more sustainable.
Many clubs operate on bank loans or loans from investors, and the investors are either paid back from income and transfer revenue at preferential rates (like Dundee Utd) or the the loan is converted into shares at some point (like Rangers). Banks wouldn't touch us after our administration, so loans were the only way we could survive.
JB could have called in his entire loan and screwed us. Or worse, just sold Fir Park to Morrisons. The fact that he wrote off a huge chunk he was owed has also benefited the club.
So feel free to the tell the society what you like, but it sounds like you misunderstand how JB and, in particular Les, kept the club afloat and helped put us in the position of relative strength we are now.