Blockstream, of which Maxwell is an officer of, stands to profit from Bitcoin becoming a settlement layer. Settlement layer solutions are literally Blockstream's only products.
Do you have any proof to back up that claim?
From what I understand, the only products blockstream currently has are blockchain tech for banks, such as "confidential assets" and the work they did on IBM and Intel's "hyperledger".
They did not develop any lightning implementation, nor did they state they planned to run a lightning hub, and it doesn't make much sense for them to run one as the best businesses to run LN hubs are companies like coinbase and bitpay who already have a large base of users and merchants and are already doing offchain payments.
Blockstream is officially
testing Lighting on the testnet. They also
consider themselves to be a "implementers" of Lighting protocol system(s).
The first product of Blockstream is
licquid, which acts as a 2nd layer above Bitcoin. They have
developed Strong Federations, which supplement Liquid.
Blockstream's
sidechains also act as a 2nd layer.
I suspect that they will implement
confidential assets into either LN or another 2nd layer solution. This is likely where the big money is as Banks spend a lot of money on back office work in settling trades, and have tried unsuccessfully in trying to streamline these processes with blockchain technology.
Further, LN (along with SW) will have so much technical debt, that consultants will likely be needed in order to properly setup LN nodes, and create LN compatible wallets, and the supply of qualified people who can advise companies on how to implement LN will be in short supply, however many of them will work for Blockstream, allowing them to sell their services at high rates -- they will essentially make Bitcoin and LN so complicated so that few people understand how it works.