Yes, Trump will support corporations over the American people because he can make more money by making deals with big businesses. His children will run his empire and he will do whatever it takes to make sure he has deals in line to keep money in their pockets. He is greedy.
Yes, it seems likely Trump will support corporations over the American people, but the people will not likely realize it every time. Given his actions so far, Trump does not seem willing to stick to his campaign promises and is determined to favor his business buddies and the financially wealthy. However, as he did in his campaign, he is likely to convince Americans that he is doing it for their benefit.
In fact, Trump has already started to help coorporations over people. He did this at his event at Carrier where he allowed the plant to vet journalists, rather than doing it himself. This sets a dangerous precident and is evidence that he does not care about the people who elected him.
Yes, Trump will support corporations over the American people. Even thought Donald Trump ran as a populist who ostensibly had the plight of blue-collar Americans in mind, he will ultimately be seen as the ultimate conman once his presidency is over. He has already picked many cabinet appointees who are representatives of corporate America.